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v[1] = 1296 + 1840*x + 400*x^2; v[2] = 46656 + 112960*x + 59200*x^2 + 8000*x^3; for(n = 2, N, my(i = n + 1); v[i] = -(576 - 80*x)*v[i - 2] + (52 + 20*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, v[i])))};\nT(9)","reading":{"first_row":0,"offset":0,"reversed":false,"trim_zeros":"none","regular_triangle":false}}],"derivation":{"root":"n-2bc1923905556bf6","steps":["basis A013611","basis A008288"],"edges":["e-fd91849598d32af1","e-953f0b8016e7fc9d"],"text":"A038319 \u2192 basis A013611 \u2192 basis A008288"},"headline":"A038319 \u2192 basis A013611 \u2192 basis A008288","chain":null}