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537600000,  2867200000,   9175040000,  17616076800,  18790481920,   8589934592;\n  9: 14062500, 360000000, 4032000000, 25804800000, 103219200000, 264241152000, 422785843200, 386547056640, 154618822656;\n","recurrence_sentence":"The row polynomials satisfy (n-1)*P(n,x) = (5*n+16*n*x)*P(n-1,x) for n >= 2, with P(0,x) = 0, P(1,x) = 4.","mathematica":"P[0, x_] := 0;\nP[1, x_] := 4;\nP[n_, x_] := P[n, x] = Expand[Together[((5*n + 16*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] = 4; for(n = 2, N, my(i = n + 1); v[i] = ((5*n + 16*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-2e0409c0014ec240","steps":["D","basis A013611"],"edges":["e-b04b02754d5cebbf","e-65067d14cdde68ad"],"text":"A013611 \u2192 D \u2192 basis A013611"},"headline":"A013611 \u2192 D \u2192 basis A013611","chain":null}