Root regions
Nodes grouped by the interval that contains every root of every row (proved, for all n). A node can have several proved regions; the sharpest is the smallest interval.
Nodes with all roots in (-inf, 0] (2294)
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A152828 → D+1
1 · 1 · 1 · 2, 1 … row sums 1, 1, 1, 3, 3, 3, 8, 8, …
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A082985 → θ+1
1 · 1, 6 · 1, 10, 15 · 1, 14, 42, 28 … row sums 1, 7, 26, 85, 265, 804, 2393, 7019, …
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A391533 → reverse
1, 4, 4 · 1, 5, 8, 4 · 1, 6, 13, 12, 4 … row sums 9, 18, 36, 72, 144, 288, 576, 1152, …
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A081577 → basis A013610
1 · 2, 3 · 6, 18, 9 · 16, 72, 90, 27 … row sums 1, 5, 33, 205, 1289, 8085, 50737, …
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A136124 → basis A008277
1 · 3, 1 · 12, 8, 1 · 60, 60, 15, 1 … row sums 1, 4, 21, 136, 1045, 9276, 93289, …
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A327997 → basis A013610
1 · 4, 3 · 17, 27, 9 · 78, 195, 135, 27 … row sums 1, 7, 53, 435, 3873, 37383, 390501, …
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A030528 → (θ+1)²
1 · 1, 4 · 0, 8, 9 · 0, 4, 27, 16 … row sums 1, 5, 17, 47, 116, 266, 579, 1213, …
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A039756 → D
1 · 4, 2 · 9, 26, 3 · 16, 116, 120, 4 … row sums 0, 1, 6, 38, 256, 1844, 14296, 119160, …
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A172431 → ⊙ C(n,k+1) (shift -1) → reverse
1 · 1, 1 · 1, 4, 1 · 1, 10, 9, 1 … row sums 1, 2, 6, 21, 80, 322, 1347, 5798, …
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narayana → basis A013611
1 · 2, 4 · 5, 20, 16 · 14, 84, 144, 64 … row sums 1, 6, 41, 306, 2426, 20076, 171481, …
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A038326 → basis A013609
1 · 23, 24 · 529, 1104, 576 … row sums 1, 47, 2209, 103823, 4879681, …
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A038333 → basis A013611
361, 1064, 784 · 6859, 30324, 44688, 21952 … row sums 2209, 103823, 4879681, 229345007, …
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A232535 → basis A008277
1 · 3, 2 · 12, 17, 3 · 48, 121, 49, 4 … row sums 1, 5, 32, 222, 1655, 13169, 111169, …
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A090582: T(n, k) = Sum_{j=0..n-k} (-1)^j*binomial(n - k + 1, j)*(n - k + 1 - j)^n. Triangle read by rows, T(n, k) for 1 <= k <= n.
1 · 2, 1 · 6, 6, 1 · 24, 36, 14, 1 … row sums 1, 3, 13, 75, 541, 4683, 47293, 545835, …
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A114687 → basis A013610
1 · 3, 6 · 11, 42, 36 · 45, 252, 432, 216 … row sums 1, 9, 89, 945, 10577, 123129, 1476841, …
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A108838 → x ↦ x+1
2 · 5, 2 · 14, 12, 2 · 42, 56, 21, 2 … row sums 2, 7, 28, 121, 550, 2591, 12536, 61921, …
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A159854 → θ+1
0, 0, 3 · 0, 0, 3, 4 · 0, 0, 3, 8, 5 … row sums 3, 7, 16, 36, 80, 176, 384, 832, …
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A207606 → Veronese 2 (j=1)
7 · 16, 2 · 30, 15 · 50, 64, 2 … row sums 7, 18, 45, 116, 304, 798, 2091, 5474, …
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A081577 → x ↦ x+1
1 · 2, 1 · 6, 6, 1 · 16, 24, 10, 1 … row sums 1, 3, 13, 51, 205, 819, 3277, 13107, …
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A154228 → basis A008277
1 · 2, 1 · 18, 19, 1 · 96, 195, 53, 1 … row sums 1, 3, 38, 345, 6674, 117814, 3414011, …
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A091042 → Veronese 2 (j=1)
3 · 10 · 21, 7 · 36, 84 … row sums 0, 3, 10, 28, 120, 528, 2080, 8128, …
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A169803 → D
1 · 2 · 3, 2 · 4, 6 … row sums 0, 1, 2, 5, 10, 20, 38, 71, …
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A113413 → basis A007318
1 · 3, 1 · 7, 6, 1 · 17, 23, 9, 1 … row sums 1, 4, 14, 50, 178, 634, 2258, 8042, …
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A120909 → Veronese 2
3 · 3 · 3, 12 · 3, 36 … row sums 3, 3, 15, 39, 123, 363, 1095, 3279, …
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A038303 → basis A013610
1 · 11, 3 · 121, 66, 9 · 1331, 1089, 297, 27 … row sums 1, 14, 196, 2744, 38416, 537824, …
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A034870 → θ+1
1 · 1, 4, 3 · 1, 8, 18, 16, 5 … row sums 1, 8, 48, 256, 1280, 6144, 28672, …
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A081581 → basis A007318
1 · 2, 1 · 10, 10, 1 · 32, 48, 18, 1 … row sums 1, 3, 21, 99, 549, 2835, 15093, 79299, …
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A091044 → Veronese 2 (j=1)
2 · 10 · 28, 4 · 60, 60 … row sums 0, 2, 10, 32, 120, 512, 2080, 8192, …
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A085880 → D+1
1 · 2, 1 · 6, 8, 2 · 20, 45, 30, 5 … row sums 1, 3, 16, 100, 672, 4704, 33792, …
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A026374 → x ↦ x+1
1 · 2, 1 · 5, 5, 1 · 10, 15, 7, 1 … row sums 1, 3, 11, 33, 121, 363, 1331, 3993, …
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A038326 → basis A013611
1 · 23, 48 · 529, 2208, 2304 … row sums 1, 71, 5041, 357911, 25411681, …
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A033282 → D+1
1 · 3, 2 · 6, 15, 5 · 10, 51, 63, 14 … row sums 1, 5, 26, 138, 743, 4043, 22180, …
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A154986 → basis A007318
1 · 2, 1 · 6, 6, 1 · 24, 36, 14, 1 … row sums 1, 3, 13, 75, 537, 4611, 46053, 525483, …
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A008277: Triangle of Stirling numbers of the second kind, S2(n,k), n >= 1, 1 <= k <= n.
1 · 1, 1 · 1, 3, 1 · 1, 7, 6, 1 … row sums 1, 2, 5, 15, 52, 203, 877, 4140, …
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A249250 → reverse
1 · 3, 1 · 3, 6, 1 · 3, 15, 9, 1 … row sums 1, 4, 10, 28, 76, 208, 568, 1552, …
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basis-map coefficients of Square array of binomial coefficients T(n,k) = binomial(n,k), n >= 0, k >= 0, read by downward antidiagonals. shifted by x -> -x + 0
1 · 0, -1 · 0, 0, 1 · 0, 0, 0, -1 … row sums 1, -1, 1, -1, 1, -1, 1, -1, …
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A038329 → basis A013610
225, 270, 81 · 3375, 6075, 3645, 729 … row sums 576, 13824, 331776, 7962624, 191102976, …
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A304236 → D+1
1 · 1 · 4, 3 · 7, 6 … row sums 1, 1, 7, 13, 46, 106, 301, 739, …
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A114656 → basis A013611
1 · 3, 4 · 11, 32, 16 · 45, 204, 240, 64 … row sums 1, 7, 59, 553, 5541, 58107, 629799, …
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A007318 → D+1 → D+1
1 · 3, 1 · 7, 6, 1 · 13, 21, 9, 1 … row sums 1, 4, 14, 44, 128, 352, 928, 2368, …
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A099093 → D
3 · 3, 18 · 0, 36, 81 · 0, 18, 243, 324 … row sums 0, 3, 21, 117, 585, 2754, 12474, 54999, …
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A091044 → basis A013609
1 · 4, 4 · 16, 32, 12 · 64, 192, 160, 32 … row sums 1, 8, 60, 448, 3344, 24960, 186304, …
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A013612 → basis A008277
36, 85, 25 · 216, 1115, 825, 125 … row sums 146, 2281, 40791, 816926, 18036311, …
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A091044 → basis A007318
1 · 4, 2 · 16, 16, 3 · 64, 96, 40, 4 … row sums 1, 6, 35, 204, 1189, 6930, 40391, …
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A054142 → Veronese 2 (j=1)
1 · 3 · 5, 1 · 7, 10 … row sums 0, 1, 3, 6, 17, 45, 116, 305, …
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A154986 → basis A013609
1 · 2, 2 · 6, 12, 4 · 24, 72, 56, 8 … row sums 1, 4, 22, 160, 1432, 15328, 190192, …
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A008303: Triangle read by rows: T(n,k) (n >= 1, 0 <= k <= ceiling(n/2)-1) = number of permutations of [n] with k peaks.
A008292 → γ (scale 1/4) (shift +1)1 · 2 · 4, 2 · 8, 16 … row sums 1, 2, 6, 24, 120, 720, 5040, 40320, …
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A038231: Triangle whose (i,j)-th entry is binomial(i,j)*4^(i-j).
1 · 4, 1 · 16, 8, 1 · 64, 48, 12, 1 … row sums 1, 5, 25, 125, 625, 3125, 15625, 78125, …
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A038291: Triangle whose (i,j)-th entry is binomial(i,j)*9^(i-j)*1^j.
1 · 9, 1 · 81, 18, 1 · 729, 243, 27, 1 … row sums 1, 10, 100, 1000, 10000, 100000, …
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A102662 → basis A013609
1 · 4, 6 · 9, 22, 12 · 22, 76, 80, 24 … row sums 1, 10, 43, 202, 937, 4354, 20227, …