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v[1] = 0; v[2] = 0; v[3] = 1; for(n = 3, N, my(i = n + 1); v[i] = ((3*n^2 - 4*n + (n^2 - n)*x)*v[i - 1] + (5*n - 5 + (6*n - 6)*x + (n - 1)*x^2)*deriv(v[i - 1], x))/(2*n^2 - 7*n + 6)); 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-0eba401b117f16a9","steps":["D","x \u21a6 x+1"],"edges":["e-04abbda3a865d9ca","e-46f8a46fd54c1bd6"],"text":"A085478 \u2192 D \u2192 x \u21a6 x+1"},"headline":"A085478 \u2192 D \u2192 x \u21a6 x+1","chain":null}