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v[1] = 1; for(n = 1, N, my(i = n + 1); v[i] = ((2*n^4 + 4*n^3 + 3*n^2 + n + (12*n^4 + 4*n^3 - 13*n^2 - 5*n)*x + (24*n^3 - 8*n^2 - 4*n)*x^2 + (12*n^2 + 4*n)*x^3)*v[i - 1] + ((4*n^3 + 4*n^2)*x - (8*n^3 - 2*n + 1)*x^2 - (16*n^2 - 4)*x^3 - (8*n + 4)*x^4)*deriv(v[i - 1], x))/(2*n^4 - n^2 + n + (4*n^3 - n^2 - 5*n)*x + (2*n^2 + 2*n)*x^2)); 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-8ce61d302cec295b","steps":["\u03b8+1","D+1"],"edges":["e-2a32d110f0351649","e-713eddd741fdcc0a"],"text":"A114687 \u2192 \u03b8+1 \u2192 D+1"},"headline":"A114687 \u2192 \u03b8+1 \u2192 D+1","chain":null}