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v[1] = 1; v[2] = 6 + 4*x; for(n = 3, N, my(i = n); v[i] = ((16*n^3 - 80*n^2 + 116*n - 40 + (48*n^3 - 224*n^2 + 260*n - 8)*x + (96*n^2 - 380*n + 376)*x^2 + (48*n - 96)*x^3)*v[i - 1] - ((8*n^2 - 20*n + 8)*x + (32*n^2 - 64*n + 6)*x^2 + (64*n - 96)*x^3 + 32*x^4)*deriv(v[i - 1], x))/(4*n^3 - 24*n^2 + 47*n - 30 + (8*n^2 - 37*n + 42)*x + (4*n - 8)*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-f7935c36a3c0ec8c","steps":["basis A013611","D+1"],"edges":["e-11143fa0a471b62a","e-6eef2e13cc6b2159"],"text":"A086645 \u2192 basis A013611 \u2192 D+1"},"headline":"A086645 \u2192 basis A013611 \u2192 D+1","chain":null}