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429981696;\n  7:  1953125,   42187500,   405000000,   2268000000,   8164800000,   19595520000,   31352832000,   32248627200,   19349176320,    5159780352;\n  8:  9765625,  234375000,  2531250000,  16200000000,  68040000000,  195955200000,  391910400000,  537477120000,  483729408000,  257989017600,   61917364224;\n  9: 48828125, 1289062500, 15468750000, 111375000000, 534600000000, 1796256000000, 4311014400000, 7390310400000, 8868372480000, 7094697984000, 3405455032320, 743008370688;\n","recurrence_sentence":"The row polynomials satisfy P(n,x) = (5+12*x)*P(n-1,x) for n >= 1, with P(0,x) = 25 + 120*x + 144*x^2.","mathematica":"P[0, x_] := 25 + 120*x + 144*x^2;\nP[n_, x_] := P[n, x] = Expand[(5 + 12*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] = 25 + 120*x + 144*x^2; for(n = 1, N, my(i = n + 1); v[i] = (5 + 12*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 - 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