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94535535340008, 425409909030036, 1093911194648664, 1758071562828210, 1808302178909016, 1162479972155796, 427033459159272, 68630377364883;\n","recurrence_sentence":"The row polynomials satisfy (n-1)*P(n,x) = (21*n+27*n*x)*P(n-1,x) for n >= 2, with P(0,x) = 0, P(1,x) = 27.","mathematica":"P[0, x_] := 0;\nP[1, x_] := 27;\nP[n_, x_] := P[n, x] = Expand[Together[((21*n + 27*n*x)*P[n - 1, x])/(n - 1)]];\nTable[CoefficientList[P[n, x], x], {n, 0, 9}] // Flatten","pari":"P(N) = {my(v = vector(N + 1)); v[1] = 0; v[2] = 27; for(n = 2, N, my(i = n + 1); v[i] = ((21*n + 27*n*x)*v[i - 1])/(n - 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-f485cd65a8f8089f","steps":["basis A013610","D"],"edges":["e-b7b3e04e23eb02df","e-2f1a844045f80fe2"],"text":"A038335 \u2192 basis A013610 \u2192 D"},"headline":"A038335 \u2192 basis A013610 \u2192 D","chain":null}