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8: 1048576,  36700160,  578027520,  5394923520,  33043906560,  138784407552,  404787855360,  809575710720,  1062568120320,   826441871360,   289254654976;\n  9: 4194304, 161480704, 2825912320, 29672079360, 207704555520, 1017752322048, 3562133127168, 8905332817920, 15584332431360, 18181721169920, 12727204818944, 4049565169664;\n","recurrence_sentence":"The row polynomials satisfy P(n,x) = (4+14*x)*P(n-1,x) for n >= 1, with P(0,x) = 16 + 112*x + 196*x^2.","mathematica":"P[0, x_] := 16 + 112*x + 196*x^2;\nP[n_, x_] := P[n, x] = Expand[(4 + 14*x)*P[n - 1, x]];\nTable[CoefficientList[P[n, x], x], {n, 0, 9}] // Flatten","pari":"P(N) = {my(v = vector(N + 1)); v[1] = 16 + 112*x + 196*x^2; for(n = 1, N, my(i = n + 1); v[i] = (4 + 14*x)*v[i - 1]); v};\nrow(n, p) = {my(c = Vecrev(p)); c};\nT(N) = {my(v = P(N)); concat(vector(#v, i, row(i - 1, v[i])))};\nT(9)","reading":{"first_row":0,"offset":0,"reversed":false,"trim_zeros":"none","regular_triangle":false}}],"derivation":{"root":"n-ea9b82d727693fb6","steps":["basis A013609","reverse"],"edges":["e-ccf7b0982517b62a","e-64c98336971fc9ef"],"text":"A038328 \u2192 basis A013609 \u2192 reverse"},"headline":"A038328 \u2192 basis A013609 \u2192 reverse","chain":null}