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v[1] = 1; v[2] = 3 + 2*x; for(n = 2, N, my(i = n + 1); v[i] = (-(n + (4*n^2 - 8*n + 2)*x + (4*n^3 - 12*n^2 + 18*n - 16)*x^2 + (12*n^2 - 28*n + 20)*x^3 + (8*n - 8)*x^4)*v[i - 2] + (2*n*x^2 + (4*n^2 - 4*n + 4)*x^3 + (12*n - 8)*x^4 + 8*x^5)*deriv(v[i - 2], x) + (2*n - 1 + (4*n^2 - 8*n + 8)*x + (10*n - 12)*x^2 + 4*x^3)*v[i - 1] - ((2*n - 2)*x^2 + 4*x^3)*deriv(v[i - 1], x))/(n - 1 + 2*x)); 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-a7e9ebb9860a9dbe","steps":["reverse","D+1"],"edges":["e-188635230e4781f5","e-7483246742bc1972"],"text":"A075497 \u2192 reverse \u2192 D+1"},"headline":"A075497 \u2192 reverse \u2192 D+1","chain":null}