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v[1] = 1; for(n = 1, N, my(i = n + 1); v[i] = (-(27*n^3 - 75*n^2 + 26*n + 40 + (108*n^3 - 250*n^2 + 8*n + 212)*x + (144*n^3 - 200*n^2 - 240*n + 388)*x^2 + (64*n^3 + 96*n^2 - 416*n + 240)*x^3 + (128*n^2 - 144*n - 64)*x^4 + (64*n - 96)*x^5)*v[i - 1] + (18*n^2 - 6*n - 8 + (102*n^2 - 2*n - 52)*x + (212*n^2 + 116*n - 116)*x^2 + (192*n^2 + 336*n - 72)*x^3 + (64*n^2 + 352*n + 96)*x^4 + (128*n + 160)*x^5 + 64*x^6)*deriv(v[i - 1], x))/(9*n^2 - 11*n - 4 + (24*n^2 - 16*n - 30)*x + (16*n^2 + 24*n - 56)*x^2 + (32*n - 16)*x^3 + 16*x^4)); 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-35bd700768cac55f","steps":["basis A013609","D+1"],"edges":["e-69752228c1d1e91e","e-619d42f00503a4a3"],"text":"A103633 \u2192 basis A013609 \u2192 D+1"},"headline":"A103633 \u2192 basis A013609 \u2192 D+1","chain":null}