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v[1] = 1; for(n = 2, N, my(i = n); v[i] = (-(13*n - 30 + (68*n - 164)*x + (142*n - 328)*x^2 + (132*n - 284)*x^3 + (45*n - 90)*x^4)*v[i - 1] + (5 + 49*x + 162*x^2 + 242*x^3 + 169*x^4 + 45*x^5)*deriv(v[i - 1], x))/(4*n - 4 + (8*n - 8)*x + (4*n - 4)*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-392f49b496f79fbf","steps":["basis A013611","x \u21a6 x/(x+1)"],"edges":["e-4d9d32144b57b963","e-6091b798ba053985"],"text":"A026729 \u2192 basis A013611 \u2192 x \u21a6 x/(x+1)"},"headline":"A026729 \u2192 basis A013611 \u2192 x \u21a6 x/(x+1)","chain":null}