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v[1] = 1; for(n = 2, N, my(i = n); v[i] = ((8*n - 12 + (46*n - 71)*x + (84*n - 138)*x^2 + (62*n - 111)*x^3 + (16*n - 32)*x^4)*v[i - 1] - (4*x + 28*x^2 + 60*x^3 + 52*x^4 + 16*x^5)*deriv(v[i - 1], x))/(2*n - 3 + (4*n - 6)*x + (2*n - 3)*x^2)); v};\nrow(n, p) = {my(c = Vecrev(p)); c};\nT(N) = {my(v = P(N)); concat(vector(#v, i, row(i, v[i])))};\nT(10)","reading":{"first_row":1,"offset":1,"reversed":false,"trim_zeros":"none","regular_triangle":false}}],"derivation":{"root":"n-ba8de4e02acfb6ca","steps":["basis A013610","x \u21a6 x/(x+1)"],"edges":["e-4aa0aeb00b1923c9","e-07a45671dddaeeb0"],"text":"A091042 \u2192 basis A013610 \u2192 x \u21a6 x/(x+1)"},"headline":"A091042 \u2192 basis A013610 \u2192 x \u21a6 x/(x+1)","chain":null}