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, -1] (188)
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A099040 → basis A007318
1 · 2, 2 · 6, 10, 4 · 16, 40, 32, 8 … row sums 1, 4, 20, 96, 464, 2240, 10816, 52224, …
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A132812 → x ↦ x+1
1 · 4, 2 · 15, 15, 3 · 56, 84, 36, 4 … row sums 1, 6, 33, 180, 985, 5418, 29953, …
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A082985 → x ↦ x+1
1 · 4, 3 · 11, 15, 5 · 29, 56, 35, 7 … row sums 1, 7, 31, 127, 511, 2047, 8191, 32767, …
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A038220: Triangle whose (i,j)-th entry is binomial(i,j)*3^(i-j)*2^j.
1 · 3, 2 · 9, 12, 4 · 27, 54, 36, 8 … row sums 1, 5, 25, 125, 625, 3125, 15625, 78125, …
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A113953 → basis A007318
1 · 1, 1 · 3, 4, 1 · 5, 11, 7, 1 … row sums 1, 2, 8, 24, 80, 256, 832, 2688, …
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A013620 → basis A007318
1 · 5, 3 · 25, 30, 9 · 125, 225, 135, 27 … row sums 1, 8, 64, 512, 4096, 32768, 262144, …
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A034870: Even-numbered rows of Pascal's triangle.
1 · 1, 2, 1 · 1, 4, 6, 4, 1 · 1, 6, 15, 20, 15, 6, 1 … row sums 1, 4, 16, 64, 256, 1024, 4096, 16384, …
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A081579 → basis A007318
1 · 2, 1 · 8, 8, 1 · 24, 36, 14, 1 … row sums 1, 3, 17, 75, 361, 1683, 7937, 37275, …
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A039756 → x ↦ x+1
1 · 2, 1 · 6, 6, 1 · 24, 38, 16, 1 … row sums 1, 3, 13, 79, 601, 5339, 53861, 607527, …
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A128099 → x ↦ x+1
1 · 1 · 3, 2 · 5, 4 … row sums 1, 1, 5, 9, 29, 65, 181, 441, …
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A104684 → basis A007318
1 · 3, 1 · 13, 8, 1 · 63, 57, 15, 1 … row sums 1, 4, 22, 136, 886, 5944, 40636, …
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A100861 → reverse → x ↦ x+1
1 · 1, 1 · 2, 3, 1 · 4, 9, 6, 1 … row sums 1, 2, 6, 20, 76, 312, 1384, 6512, …
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A059344 → ⊙ 1/k! (shift -1) → x ↦ x+1
1 · 1 · 3, 2 · 7, 6 … row sums 1, 1, 5, 13, 49, 161, 581, 2045, …
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A116412 → basis A007318
1 · 4, 1 · 13, 8, 1 · 43, 42, 12, 1 … row sums 1, 5, 22, 98, 436, 1940, 8632, 38408, …
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A062145 → x ↦ x+1
1 · 5, 4 · 21, 30, 10 · 84, 168, 105, 20 … row sums 1, 9, 61, 377, 2241, 13073, 75517, …
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A008278 → x ↦ x+1 (shift +1) → x ↦ x+1
1 · 3, 1 · 11, 7, 1 · 49, 46, 13, 1 … row sums 1, 4, 19, 109, 742, 5815, 51193, …
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A008292 → γ (scale 1/2) (shift +1) → x ↦ x+1
1 · 1 · 2, 1 · 5, 4 … row sums 1, 1, 3, 9, 39, 189, 1107, 7281, …
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A274498 → x ↦ x+1
1 · 3 · 9, 6 · 27, 18 … row sums 1, 3, 15, 45, 225, 675, 3375, 10125, …
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A318772 → basis A007318
1 · 1 · 1 · 1 … row sums 1, 1, 1, 1, 7, 13, 19, 25, …
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A227450 → x ↦ x+1
2 · 6, 4 · 22, 28, 8 · 94, 172, 96, 16 … row sums 2, 10, 58, 378, 2714, 21178, 177818, …
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A011973 → ⊙ C(n,k) → x ↦ x+1
1 · 1 · 3, 2 · 7, 6 … row sums 1, 1, 5, 13, 49, 161, 581, 2045, …
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A099093 → basis A007318
1 · 3, 3 · 12, 21, 9 · 45, 117, 99, 27 … row sums 1, 6, 42, 288, 1980, 13608, 93528, …
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A249252 → basis A007318
1 · 5, 4 · 17, 24, 8 · 61, 124, 80, 16 … row sums 1, 9, 49, 281, 1601, 9129, 52049, …
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A249250 → x ↦ x+1
1 · 4, 3 · 10, 12, 3 · 28, 48, 24, 3 … row sums 1, 7, 25, 103, 409, 1639, 6553, 26215, …
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A159854 → x ↦ x+1
1, 2, 1 · 2, 5, 4, 1 · 4, 12, 13, 6, 1 … row sums 4, 12, 36, 108, 324, 972, 2916, 8748, …
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A114655 → x ↦ x+1
2 · 6, 2 · 22, 16, 2 · 90, 102, 30, 2 … row sums 2, 8, 40, 224, 1344, 8448, 54912, …
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basis-map coefficients of A026729 → basis A056242 → x ↦ x+1
1 · 3, 2 · 10, 13, 4 · 34, 65, 40, 8 … row sums 1, 5, 27, 147, 801, 4365, 23787, …
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A091042 → basis A007318
1 · 4, 3 · 16, 20, 5 · 64, 112, 56, 7 … row sums 1, 7, 41, 239, 1393, 8119, 47321, …
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delannoy → x ↦ x+1
1 · 2, 1 · 5, 5, 1 · 12, 18, 8, 1 … row sums 1, 3, 11, 39, 139, 495, 1763, 6279, …
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A039755 → x ↦ x+1
1 · 2, 1 · 6, 6, 1 · 24, 34, 12, 1 … row sums 1, 3, 13, 71, 457, 3355, 27509, 248127, …
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A272866 → basis A007318
1 · 5, 5, 1 · 25, 50, 35, 10, 1 … row sums 1, 11, 121, 1331, 14641, 161051, …
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A143685 → basis A007318
1 · 2, 1 · 13, 13, 1 · 44, 66, 24, 1 … row sums 1, 3, 27, 135, 891, 5103, 31347, …
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A008292 → γ (scale 1/4) (shift +1) → x ↦ x+1
1 · 2 · 6, 2 · 24, 16 … row sums 1, 2, 8, 40, 256, 1952, 17408, 177280, …
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A216973: Exponential Riordan array [x*exp(x),x].
A007318 → D1 · 2, 2 · 3, 6, 3 · 4, 12, 12, 4 … row sums 0, 1, 4, 12, 32, 80, 192, 448, …
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A007318 → θ+1 → x ↦ x+1
1 · 3, 2 · 8, 10, 3 · 20, 36, 21, 4 … row sums 1, 5, 21, 81, 297, 1053, 3645, 12393, …
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A249251 → basis A007318
1 · 4, 3 · 13, 18, 6 · 43, 87, 57, 12 … row sums 1, 7, 37, 199, 1069, 5743, 30853, …
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A143494 → x ↦ x+1
1 · 3, 1 · 10, 7, 1 · 37, 40, 12, 1 … row sums 1, 4, 18, 90, 494, 2946, 18926, 130066, …
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A135065: A127733 * A007318 as infinite lower triangular matrices.
A007318 → ×(1+2n+n²)1 · 4, 4 · 9, 18, 9 · 16, 48, 48, 16 … row sums 1, 8, 36, 128, 400, 1152, 3136, 8192, …
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A010054: a(n) = 1 if n is a triangular number, otherwise 0.
1 · 1 · 1 · 1 … row sums 1, 1, 1, 1, 1, 1, 1, 1, …
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A391533 → x ↦ x+1
9, 6, 1 · 18, 21, 8, 1 · 36, 60, 37, 10, 1 … row sums 16, 48, 144, 432, 1296, 3888, 11664, …
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A007318 → (θ+1)² → x ↦ x+1
1 · 5, 4 · 18, 26, 9 · 56, 114, 75, 16 … row sums 1, 9, 53, 261, 1161, 4833, 19197, …
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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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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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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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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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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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A145596 → x ↦ x+1
1 · 4, 2 · 14, 14, 3 · 48, 72, 32, 4 … row sums 1, 6, 31, 156, 785, 3978, 20335, …
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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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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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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, …