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v[1] = 0; v[2] = 2; for(n = 2, N, my(i = n + 1); v[i] = (-(18*n^2 - 84*n + 42 + (12*n^2 - 102*n + 78)*x - (26*n - 46)*x^2 + 8*x^3)*v[i - 1] + (36*n - 36 + (72*n - 96)*x + (42*n - 90)*x^2 + (6*n - 34)*x^3 - 4*x^4)*deriv(v[i - 1], x))/(6*n - 6 + (3*n^2 - 3*n)*x - (2*n - 2)*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-1bffaa6198344f93","steps":["x \u21a6 x+1","D"],"edges":["e-c090df23694a462d","e-14fbafd92ac94174"],"text":"A059473 \u2192 x \u21a6 x+1 \u2192 D"},"headline":"A059473 \u2192 x \u21a6 x+1 \u2192 D","chain":null}