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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A086645 → γ
1 · 1 · 1, 4 · 1, 12 … row sums 1, 1, 5, 13, 41, 121, 365, 1093, …
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A136572 → basis A013609
1 · 1, 2 · 2, 8, 8 · 6, 36, 72, 48 … row sums 1, 3, 18, 162, 1944, 29160, 524880, …
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A013618 → basis A013609
144, 528, 484 · 1728, 9504, 17424, 10648 … row sums 1156, 39304, 1336336, 45435424, …
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A159854 → basis A013609
1, 4, 4 · 2, 10, 16, 8 · 4, 24, 52, 48, 16 … row sums 9, 36, 144, 576, 2304, 9216, 36864, …
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A001263 → (θ+1)²
1 · 1, 4 · 1, 12, 9 · 1, 24, 54, 16 … row sums 1, 5, 22, 95, 406, 1722, 7260, 30459, …
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A257613 → γ
1 · 4 · 16, 16 · 64, 224 … row sums 1, 4, 32, 288, 3264, 41856, 615168, …
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A007318 → ×(1+2n+n²) → D+1
1 · 8, 4 · 27, 36, 9 · 64, 144, 96, 16 … row sums 1, 12, 72, 320, 1200, 4032, 12544, …
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A086645 → D+1
1 · 2, 1 · 7, 8, 1 · 16, 45, 18, 1 … row sums 1, 3, 16, 80, 384, 1792, 8192, 36864, …
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A113413 → basis A013610
1 · 3, 3 · 7, 18, 9 · 17, 69, 81, 27 … row sums 1, 6, 34, 194, 1106, 6306, 35954, …
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A008278 → x ↦ x+1 (shift +1) → reverse
1 · 1, 2 · 1, 5, 5 · 1, 10, 23, 15 … row sums 1, 3, 11, 49, 257, 1539, 10299, 75905, …
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A113214 → D
1 · 3, 2 · 2, 8, 3 · 0, 10, 15, 4 … row sums 0, 1, 5, 13, 29, 60, 118, 225, …
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A011973 → x ↦ x+2 (shift +1) → Veronese 2 (j=1)
1 · 2 · 7 · 16 … row sums 0, 1, 2, 7, 16, 42, 98, 237, …
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A274496 → (θ+1)²
1 · 2 · 2, 8 · 4, 16 … row sums 1, 2, 10, 20, 72, 144, 448, 896, …
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A081580 → basis A008277
1 · 2, 1 · 9, 10, 1 · 28, 59, 19, 1 … row sums 1, 3, 20, 107, 681, 4454, 31263, …
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A121574 → basis A013611
1 · 3, 4 · 10, 28, 16 · 33, 140, 176, 64 … row sums 1, 7, 54, 413, 3161, 24192, 185149, …
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A013612 → basis A007318
36, 60, 25 · 216, 540, 450, 125 … row sums 121, 1331, 14641, 161051, 1771561, …
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A099097 → reverse
1 · 3 · 9, 1 · 27, 6 … row sums 1, 3, 10, 33, 109, 360, 1189, 3927, …
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A172431 → basis A013611
1 · 3, 8 · 8, 40, 48 · 21, 152, 352, 256 … row sums 1, 11, 96, 781, 6191, 48576, 379561, …
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A111125 → basis A013609
1 · 4, 2 · 11, 14, 4 · 29, 62, 40, 8 … row sums 1, 6, 29, 139, 666, 3191, 15289, 73254, …
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A130534 → Veronese 2
1 · 1 · 2, 1 · 6, 6 … row sums 1, 1, 3, 12, 60, 360, 2520, 20160, …
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A035607 → basis A013609
1 · 1 · 3, 4 · 7, 16, 8 … row sums 1, 1, 7, 31, 145, 673, 3127, 14527, …
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A026729 → basis A008277
1 · 1, 1 · 2, 4, 1 · 3, 13, 8, 1 … row sums 1, 2, 7, 25, 102, 456, 2219, 11640, …
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A130850: Triangle read by rows, 0 <= k <= n, T(n,k) = Sum_{j=0..n} A(n,j)*binomial(n-j,k) where A(n,j) are the Eulerian numbers A173018.
A028246 → reverse1 · 1, 1 · 2, 3, 1 · 6, 12, 7, 1 … row sums 1, 2, 6, 26, 150, 1082, 9366, 94586, …
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A027465 → θ+1
1 · 3, 2 · 9, 12, 3 · 27, 54, 27, 4 … row sums 1, 5, 24, 112, 512, 2304, 10240, 45056, …
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A099097 → D
3 · 1, 18 · 0, 12, 81 · 0, 2, 81, 324 … row sums 0, 3, 19, 93, 407, 1674, 6618, 25455, …
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A094816 → (θ+1)²
1 · 1, 4 · 1, 12, 9 · 1, 32, 54, 16 … row sums 1, 5, 22, 103, 543, 3273, 22512, …
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A099097 → basis A008277
1 · 3, 3 · 10, 28, 9 · 33, 207, 168, 27 … row sums 1, 6, 47, 435, 4622, 55080, 724371, …
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A130123 → basis A013609
1 · 2, 4 · 4, 16, 16 · 8, 48, 96, 64 … row sums 1, 6, 36, 216, 1296, 7776, 46656, …
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A063007: T(n,k) = binomial(n,k)*binomial(n+k,k), 0 <= k <= n, triangle read by rows.
1 · 1, 2 · 1, 6, 6 · 1, 12, 30, 20 … row sums 1, 3, 13, 63, 321, 1683, 8989, 48639, …
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A152842 → θ+1
1 · 1, 6 · 1, 8, 9 · 1, 14, 45, 36 … row sums 1, 7, 18, 96, 224, 1088, 2432, 11264, …
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A272866 → D+1
1 · 4, 5, 1 · 7, 28, 29, 10, 1 … row sums 1, 10, 75, 500, 3125, 18750, 109375, …
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A142458 → γ
1 · 1 · 1, 6 · 1, 36 … row sums 1, 1, 7, 37, 379, 4129, 59743, 972973, …
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A120910 → basis A008277
3 · 9, 3 · 27, 21, 3 · 81, 111, 36, 3 … row sums 3, 12, 51, 231, 1116, 5745, 31443, …
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A156992 → basis A013611
1 · 4, 8 · 24, 96, 96 · 192, 1152, 2304, 1536 … row sums 1, 12, 216, 5184, 155520, 5598720, …
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A156992 → γ
1 · 2 · 6 · 24 … row sums 1, 2, 6, 24, 120, 720, 5040, 40320, …
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basis-map coefficients of Triangle read by rows: T(n,k) = binomial(k,n-k). 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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A099097 → Veronese 2
1 · 0, 9 · 0, 6 · 0, 1, 81 … row sums 1, 0, 9, 6, 82, 108, 783, 1470, …
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A007318 → ×(1+(3/2)n+(1/2)n²) → D
3 · 12, 12 · 30, 60, 30 · 60, 180, 180, 60 … row sums 0, 3, 24, 120, 480, 1680, 5376, 16128, …
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A123519 → x ↦ x+1
11, 14, 4 · 41, 76, 44, 8 · 153, 372, 324, 120, 16 … row sums 29, 169, 985, 5741, 33461, 195025, …
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A145597 → basis A013611
1 · 6, 12 · 27, 108, 96 · 110, 660, 1200, 640 … row sums 1, 18, 231, 2610, 27765, 286146, …
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A173018 → reverse (shift +1) → D+1
1 · 1, 1 · 1, 3, 1 · 1, 9, 7, 1 … row sums 1, 2, 5, 18, 84, 480, 3240, 25200, …
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A038255 → basis A008277
1 · 7, 1 · 49, 15, 1 · 343, 169, 24, 1 … row sums 1, 8, 65, 537, 4516, 38699, 338233, …
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A113953 → Veronese 2
1 · 0, 1 · 0, 4 · 0, 4, 1 … row sums 1, 0, 1, 4, 5, 8, 25, 44, …
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A121574 → Veronese 2 (j=1)
1 · 5 · 16, 1 · 44, 11 … row sums 0, 1, 5, 17, 55, 180, 594, 1963, …
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A094638 → Veronese 2 (j=1)
1 · 3 · 6, 6 · 10, 50 … row sums 0, 1, 3, 12, 60, 360, 2520, 20160, …
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basis-map coefficients of A113214, shifted → basis A013610
1 · -2, -3 · 4, 12, 9 · -8, -36, -54, -27 … row sums 1, -5, 25, -125, 625, -3125, 15625, …
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A038325 → basis A013610
1 · 22, 33 · 484, 1452, 1089 … row sums 1, 55, 3025, 166375, 9150625, …
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A094638 → (θ+1)²
1 · 1, 4 · 1, 12, 18 · 1, 24, 99, 96 … row sums 1, 5, 31, 220, 1756, 15596, 152804, …
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A122431 → basis A013609
8, 24, 24, 8 · 8, 40, 72, 56, 16 … row sums 64, 192, 576, 1728, 5184, 15552, 46656, …
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A008277 → θ+2 (shift +1) → θ+1
2 · 2, 6 · 2, 18, 12 · 2, 42, 72, 20 … row sums 2, 8, 32, 136, 622, 3060, 16130, 90688, …