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5290212332160,   4005510445440,   1689966633600,   397073819520,    48410732160,    2380855680;\n  9: 7087500000000, 69459357945600, 249729128006400, 438606818092800, 423699722208000, 238680781920000, 79988814662400, 15642221817600, 1642790419200, 71425670400;\n","recurrence_sentence":"The row polynomials satisfy P(n,x) = -(10*n^2+10*n-(3*n^2+3*n)*x)*P(n-2,x) + (7*n+7+(3*n+3)*x)*P(n-1,x) for n >= 2, with P(0,x) = 1, P(1,x) = 10 + 6*x.","mathematica":"P[0, x_] := 1;\nP[1, x_] := 10 + 6*x;\nP[n_, x_] := P[n, x] = Expand[-(10*n^2 + 10*n - (3*n^2 + 3*n)*x)*P[n - 2, x] + (7*n + 7 + (3*n + 3)*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; v[2] = 10 + 6*x; for(n = 2, N, my(i = n + 1); v[i] = -(10*n^2 + 10*n - (3*n^2 + 3*n)*x)*v[i - 2] + (7*n + 7 + (3*n + 3)*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, 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