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7968,            64;\n  5:    21664,      350848,       526272,         86656,           160;\n  6:   174336,     6038400,     21050880,      12076800,        871680,          384;\n  7:  1397120,    95695104,    656515200,     875353600,     239237760,      8382720,         896;\n  8: 11182592,  1445912576,  17723668992,   45518387200,   29539448320,   4337737728,    78278144,      2048;\n  9: 89473536, 21226844160, 436890396672, 1939687944192, 2424609930240, 873780793344, 74293954560, 715788288, 4608;\n","recurrence_sentence":"The row polynomials satisfy (3*n-5)*P(n,x) = -(48*n-32+(72*n^2-240*n+128)*x+(108*n^3-540*n^2+792*n-320)*x^2)*P(n-2,x) - ((36*n-24)*x+(108*n^2-288*n+144)*x^2-(108*n^2-252*n+120)*x^3)*d/dx P(n-2,x) + (30*n-44+(36*n^2-120*n+100)*x)*P(n-1,x) + ((18*n-30)*x-(18*n-30)*x^2)*d/dx P(n-1,x) for n >= 2, with P(0,x) = 0, P(1,x) = 2.","mathematica":"P[0, x_] := 0;\nP[1, x_] := 2;\nP[n_, x_] := P[n, x] = Expand[Together[(-(48*n - 32 + (72*n^2 - 240*n + 128)*x + (108*n^3 - 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