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v[1] = 1; for(n = 1, N, my(i = n + 1); v[i] = ((108*n^3 + 324*n^2 + 480*n + 264 + (81*n^3 + 243*n^2 + 234*n + 72)*x - (162*n + 162)*x^2 - (81*n + 81)*x^3)*v[i - 1] + (72*n^2 + 72*n + 32 + (216*n^2 + 216*n - 24)*x + (81*n^2 + 81*n - 396)*x^2 - 351*x^3 - 81*x^4)*deriv(v[i - 1], x))/(54*n^3 + 114*n + 18*n*x - 54*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-9b5c7e97e5191da6","steps":["basis A013610","D+1"],"edges":["e-5de408358bde06b7","e-906f7c0d887b6e2e"],"text":"A110441 \u2192 basis A013610 \u2192 D+1"},"headline":"A110441 \u2192 basis A013610 \u2192 D+1","chain":null}