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v[1] = 1; for(n = 1, N, my(i = n + 1); v[i] = (-(7*n - 11 + (40*n - 68)*x + (94*n - 138)*x^2 + (96*n - 116)*x^3 + (35*n - 35)*x^4)*v[i - 1] + (3 + 31*x + 110*x^2 + 174*x^3 + 127*x^4 + 35*x^5)*deriv(v[i - 1], x))/(2*n + 4*n*x + 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-f5a001953ee28e8f","steps":["basis A013611","x \u21a6 x/(x+1)"],"edges":["e-5d40644b540aa393","e-bcd10aadd2a60438"],"text":"A099040 \u2192 basis A013611 \u2192 x \u21a6 x/(x+1)"},"headline":"A099040 \u2192 basis A013611 \u2192 x \u21a6 x/(x+1)","chain":null}