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v[1] = 0; v[2] = 2; for(n = 2, N, my(i = n + 1); v[i] = (-(2*n^3 + 5*n^2 - 3*n - (11*n^3 - 43*n^2 + 16*n - 8)*x - (15*n^2 - 25*n - 10)*x^2 + (25*n^3 - 75*n^2 + 50*n)*x^3)*v[i - 1] - ((4*n^2 + 4)*x - (11*n^2 - 20*n - 9)*x^2 - (40*n^2 - 45*n - 5)*x^3 - (25*n^2 - 25*n)*x^4)*deriv(v[i - 1], x))/(-2*n^3 - n^2 + 5*n - 2 + (10*n^3 - 35*n^2 + 35*n - 10)*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-fac4d4a000d744e8","steps":["reverse","D"],"edges":["e-0c6cc2be731e428d","e-ada9039406d4b395"],"text":"A060920 \u2192 reverse \u2192 D"},"headline":"A060920 \u2192 reverse \u2192 D","chain":null}