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v[1] = 13 + 64*x + 48*x^2; for(n = 1, N, my(i = n + 1); v[i] = ((14*n + 20 + (64*n^2 + 270*n + 252)*x + (56*n^3 + 496*n^2 + 1232*n + 896)*x^2 + (96*n^3 + 640*n^2 + 1312*n + 832)*x^3)*v[i - 1] - (1 + (8*n + 24)*x + (8*n^2 + 92*n + 172)*x^2 + (48*n^2 + 328*n + 480)*x^3 + (64*n^2 + 352*n + 448)*x^4)*deriv(v[i - 1], x))/(2*n + 4 + (8*n^2 + 34*n + 36)*x + (8*n^3 + 48*n^2 + 96*n + 64)*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-b31aa1a3fd93d174","steps":["basis A013609","\u03b8+1"],"edges":["e-060b1f8a928003b3","e-bc22b906bade4cac"],"text":"A133214 \u2192 basis A013609 \u2192 \u03b8+1"},"headline":"A133214 \u2192 basis A013609 \u2192 \u03b8+1","chain":null}