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1126726723584,   460933659648,   107750725632,   11019960576;\n  9: 1207269217792, 8889891512832, 29094190405632, 55543454410752, 68166966776832, 55772972817408, 30421621536768, 10667321837568, 2181952194048, 198359290368;\n","recurrence_sentence":"The row polynomials satisfy P(n,x) = (22+18*x)*P(n-1,x) for n >= 1, with P(0,x) = 1.","mathematica":"P[0, x_] := 1;\nP[n_, x_] := P[n, x] = Expand[(22 + 18*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] = 1; for(n = 1, N, my(i = n + 1); v[i] = (22 + 18*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-b7cf68162d40a956","steps":["basis A013609","reverse"],"edges":["e-59f75239fe41171d","e-78c6f1d51c77ef97"],"text":"A038277 \u2192 basis A013609 \u2192 reverse"},"headline":"A038277 \u2192 basis A013609 \u2192 reverse","chain":null}