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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A114687 → basis A013609
1 · 3, 4 · 11, 28, 16 · 45, 168, 192, 64 … row sums 1, 7, 55, 469, 4237, 39907, 387739, …
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basis-map coefficients of A112227 → basis A013611
1, 8, 16 · 1, 12, 48, 64 · 1, 16, 96, 256, 256 … row sums 25, 125, 625, 3125, 15625, 78125, …
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A055356 → (θ+1)²
1 · 1 · 1, 4 · 1, 16, 18 … row sums 1, 1, 5, 35, 303, 3123, 37349, 508547, …
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A257621 → γ
1 · 3 · 9, 24 · 27, 312 … row sums 1, 3, 33, 339, 5409, 95427, 2087937, …
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A038334 → basis A013611
400, 1280, 1024 · 8000, 38400, 61440, 32768 … row sums 2704, 140608, 7311616, 380204032, …
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A038320 → basis A008277
289, 240, 36 · 4913, 7254, 2484, 216 … row sums 565, 14867, 419161, 12640799, …
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A141611: Triangle read by rows: T(n, k) = (n-k+1)*(k+1)*binomial(n, k).
A007318 → −D²+(−1+n)D+1+n1 · 2, 2 · 3, 8, 3 · 4, 18, 18, 4 … row sums 1, 4, 14, 44, 128, 352, 928, 2368, …
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A091042 → basis A013611
1 · 4, 12 · 16, 80, 80 · 64, 448, 896, 448 … row sums 1, 16, 176, 1856, 19456, 203776, …
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A081581 → θ+1
1 · 1, 2 · 1, 16, 3 · 1, 30, 45, 4 … row sums 1, 3, 20, 80, 372, 1540, 6496, 26496, …
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A086645 → (θ+1)²
1 · 1, 4 · 1, 24, 9 · 1, 60, 135, 16 … row sums 1, 5, 34, 212, 1216, 6592, 34304, …
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A039755 → θ+1
1 · 1, 2 · 1, 8, 3 · 1, 26, 27, 4 … row sums 1, 3, 12, 58, 324, 2044, 14320, 109960, …
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A059473 → D+1
1 · 4, 2 · 14, 18, 4 · 40, 96, 56, 8 … row sums 1, 6, 36, 200, 1068, 5544, 28192, …
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A026374 → basis A013610
1 · 2, 3 · 5, 15, 9 · 10, 45, 63, 27 … row sums 1, 5, 29, 145, 841, 4205, 24389, …
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A059344 → ⊙ 1/k! (shift -1) → (θ+1)²
1 · 1 · 1, 8 · 1, 24 … row sums 1, 1, 9, 25, 103, 351, 1251, 4299, …
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A013610 → Veronese 2 (j=1)
3 · 6 · 9, 27 · 12, 108 … row sums 0, 3, 6, 36, 120, 528, 2016, 8256, …
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A001263 → D+1
1 · 2, 1 · 4, 5, 1 · 7, 18, 9, 1 … row sums 1, 3, 10, 35, 126, 462, 1716, 6435, …
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A038226 → basis A013609
121, 352, 256 · 1331, 5808, 8448, 4096 … row sums 729, 19683, 531441, 14348907, …
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A249251 → basis A013609
1 · 4, 6 · 13, 36, 24 · 43, 174, 228, 96 … row sums 1, 10, 73, 541, 4006, 29665, 219673, …
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A128099 → D+1
1 · 1 · 3, 2 · 5, 4 … row sums 1, 1, 5, 9, 25, 53, 125, 273, …
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A143685 → θ+1
1 · 1, 2 · 1, 22, 3 · 1, 42, 63, 4 … row sums 1, 3, 26, 110, 615, 2821, 13828, 63756, …
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A008292 → γ (scale 1/4) → D+1
1 · 2 · 6, 2 · 24, 16 … row sums 1, 2, 8, 40, 240, 1680, 13440, 120960, …
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A013611 → (θ+1)²
1 · 1, 16 · 1, 32, 144 · 1, 48, 432, 1024 … row sums 1, 17, 177, 1505, 11425, 80625, 540625, …
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A038226 → basis A008277
121, 240, 64 · 1331, 5528, 3648, 512 … row sums 425, 11019, 324241, 10631107, …
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A010054 → reverse → D
3 · 0, 12 · 0, 0, 30 · 0, 0, 0, 60 … row sums 0, 3, 12, 30, 60, 105, 168, 252, …
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A001263 → basis A013610
1 · 2, 3 · 5, 15, 9 · 14, 63, 81, 27 … row sums 1, 5, 29, 185, 1257, 8925, 65445, …
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A055151: Triangular array of Motzkin polynomial coefficients.
narayana → γ (shift +1)1 · 1 · 1, 1 · 1, 3 … row sums 1, 1, 2, 4, 9, 21, 51, 127, …
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A145597 → θ+1
1 · 3, 6 · 6, 30, 18 · 10, 90, 135, 40 … row sums 1, 9, 54, 275, 1287, 5733, 24752, …
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A038277 → basis A013611
1 · 18, 44 · 324, 1584, 1936 … row sums 1, 62, 3844, 238328, 14776336, …
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A038329 → basis A013611
225, 360, 144 · 3375, 8100, 6480, 1728 … row sums 729, 19683, 531441, 14348907, …
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A027467 → basis A013610
1 · 16, 3 · 256, 96, 9 · 4096, 2304, 432, 27 … row sums 1, 19, 361, 6859, 130321, 2476099, …
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A145597 → basis A008277
1 · 6, 3 · 27, 33, 6 · 110, 250, 105, 10 … row sums 1, 9, 66, 475, 3525, 27384, 223538, …
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A001263 → θ+1
1 · 1, 2 · 1, 6, 3 · 1, 12, 18, 4 … row sums 1, 3, 10, 35, 126, 462, 1716, 6435, …
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A113413 → reverse
1 · 1, 2 · 1, 4, 2 · 1, 6, 8, 2 … row sums 1, 3, 7, 17, 41, 99, 239, 577, …
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A196347 → basis A007318
1 · 2, 1 · 8, 8, 2 · 48, 72, 36, 6 … row sums 1, 3, 18, 162, 1944, 29160, 524880, …
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A054142 → basis A013610
1 · 2, 3 · 5, 15, 9 · 13, 60, 81, 27 … row sums 1, 5, 29, 181, 1165, 7589, 49661, …
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A257617 → γ
1 · 2 · 4, 28 · 8, 364 … row sums 1, 2, 32, 372, 8724, 216108, 7186068, …
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A166343 → γ
1, 10 · 1, 24 · 1, 54, 48 · 1, 116, 360 … row sums 11, 25, 103, 477, 2739, 17745, 131247, …
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A106246: Number triangle T(n,k)=C(n,k)C(2,n-k).
A023531 → (1/2)D²+2D+11 · 2, 1 · 1, 4, 1 · 0, 3, 6, 1 … row sums 1, 3, 6, 10, 15, 21, 28, 36, …
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A081581 → basis A013609
1 · 2, 2 · 10, 20, 4 · 32, 96, 72, 8 … row sums 1, 4, 34, 208, 1444, 9520, 64072, …
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A165253 → basis A013609
1 · 1 · 2, 2 · 5, 10, 4 … row sums 1, 1, 4, 19, 91, 436, 2089, 10009, …
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A207823 → (θ+1)²
1 · 4, 4 · 15, 32, 9 · 56, 184, 108, 16 … row sums 1, 8, 56, 364, 2255, 13504, 78841, …
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A013609 → Veronese 2 (j=1)
2 · 4 · 6, 8 · 8, 32 … row sums 0, 2, 4, 14, 40, 122, 364, 1094, …
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A007318 → 2θ+1 → θ+1
1 · 1, 6 · 1, 12, 15 · 1, 18, 45, 28 … row sums 1, 7, 28, 92, 272, 752, 1984, 5056, …
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A039755 → D
1 · 4, 2 · 13, 18, 3 · 40, 116, 48, 4 … row sums 0, 1, 6, 34, 208, 1396, 10232, 81320, …
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A126216 → basis A008277
1 · 3, 1 · 11, 8, 1 · 45, 55, 15, 1 … row sums 1, 4, 20, 116, 752, 5335, 40861, …
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A118931 → basis A013610
1 · 1 · 1 · 3, 6 … row sums 1, 1, 1, 9, 33, 81, 801, 4761, …
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A116414 → basis A008277
1 · 5, 1 · 22, 11, 1 · 95, 85, 18, 1 … row sums 1, 6, 34, 199, 1216, 7769, 51884, …
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A038337 → basis A007318
529, 506, 121 · 12167, 17457, 8349, 1331 … row sums 1156, 39304, 1336336, 45435424, …
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A007318 → 2θ+1 → D
3 · 6, 10 · 9, 30, 21 · 12, 60, 84, 36 … row sums 0, 3, 16, 60, 192, 560, 1536, 4032, …
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A249250 → D+1
1 · 4, 3 · 7, 12, 3 · 10, 39, 24, 3 … row sums 1, 7, 22, 76, 244, 772, 2392, 7312, …