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            144;\n  1:            21952,             28224,             12096,               1728;\n  2:           614656,           1053696,            677376,             193536,             20736;\n  3:         17210368,          36879360,          31610880,           13547520,           2903040,            248832;\n  4:        481890304,        1239146496,        1327656960,          758661120,         243855360,          41803776,           2985984;\n  5:      13492928512,       40478785536,       52044152832,        37174394880,       15931883520,        4096770048,         585252864,         35831808;\n  6:     377801998336,     1295321137152,     1942981705728,      1665412890624,      892185477120,      305892163584,       65548320768,       8026324992,        429981696;\n  7:   10578455953408,    40802615820288,    69947341406208,     69947341406208,    44966148046848,    19271206305792,     5506058944512,    1011316948992,     108355387392,      5159780352;\n  8:  296196766695424,  1269414714408960,  2448156949217280,   2797893656248320,  2098420242186240,  1079187553124352,   385424126115840,   94389581905920,   15169754234880,   1444738498560,    61917364224;\n  9: 8293509467471872, 39097973203795968, 83781371150991360, 107718905765560320, 92330490656194560, 55398294393716736, 23742126168735744, 7267997806755840, 1557428101447680, 222489728778240, 19070548180992, 743008370688;\n","recurrence_sentence":"The row polynomials satisfy P(n,x) = (28+12*x)*P(n-1,x) for n >= 1, with P(0,x) = 784 + 672*x + 144*x^2.","mathematica":"P[0, x_] := 784 + 672*x + 144*x^2;\nP[n_, x_] := P[n, x] = Expand[(28 + 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] = 784 + 672*x + 144*x^2; for(n = 1, N, my(i = n + 1); v[i] = (28 + 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 - 1, 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