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begins:\n  0:        1;\n  1:        6,        24,         16;\n  2:       36,       288,        768,         768,          256;\n  3:      216,      2592,      12096,       27648,        32256,         18432,          4096;\n  4:     1296,     20736,     138240,      497664,      1050624,       1327104,        983040,         393216,          65536;\n  5:     7776,    155520,    1347840,     6635520,     20459520,      41140224,      54558720,       47185920,       25559040,         7864320,         1048576;\n  6:    46656,   1119744,   11943936,    74649600,    303575040,     844038144,    1642070016,     2250768384,     2158755840,      1415577600,       603979776,       150994944,        16777216;\n  7:   279936,   7838208,   99283968,   752467968,   3804143616,   13544423424,   34966536192,    66418900992,    93244096512,     96315899904,     72137834496,     38050725888,     13388218368,      2818572288,      268435456;\n  8:  1679616,  53747712,  788299776,  7023034368,  42472636416,  184605474816,  595731677184,  1454421049344,  2712982781952,   3878456131584,   4236314148864,   3500666781696,   2147752083456,    947040288768,   283467841536,    51539607552,    4294967296;\n  9: 10077696, 362797056, 6046617600, 61917364224, 436001439744, 2239344672768, 8684483641344, 25977774145536, 60715708710912, 111653060345856, 161908556562432, 184730838368256, 164683541643264, 113238960242688, 58793807314944, 22265110462464, 5798205849600, 927712935936, 68719476736;\n","recurrence_sentence":"The row polynomials satisfy P(n,x) = (6+24*x+16*x^2)*P(n-1,x) for n >= 1, with P(0,x) = 1.","mathematica":"P[0, x_] := 1;\nP[n_, x_] := P[n, x] = Expand[(6 + 24*x + 16*x^2)*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; for(n = 1, N, my(i = n + 1); v[i] = (6 + 24*x + 16*x^2)*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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