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v[1] = 29 + 24*x + 4*x^2; for(n = 1, N, my(i = n + 1); v[i] = ((14*n^3 + 88*n^2 + 154*n + 80 + (12*n^3 + 100*n^2 + 205*n + 122)*x + (24*n^2 + 88*n + 76)*x^2 + (12*n + 16)*x^3)*v[i - 1] - (4*n^2 + 22*n + 26 + (12*n^2 + 74*n + 96)*x + (8*n^2 + 68*n + 110)*x^2 + (16*n + 48)*x^3 + 8*x^4)*deriv(v[i - 1], x))/(2*n^3 + 12*n^2 + 22*n + 12 + (4*n^2 + 13*n + 10)*x + (2*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 - 1, v[i])))};\nT(9)","reading":{"first_row":0,"offset":0,"reversed":false,"trim_zeros":"none","regular_triangle":false}}],"derivation":{"root":"n-b31aa1a3fd93d174","steps":["basis A007318","D+1"],"edges":["e-9a0dabc7f010818b","e-d15cd9d9133291a3"],"text":"A133214 \u2192 basis A007318 \u2192 D+1"},"headline":"A133214 \u2192 basis A007318 \u2192 D+1","chain":null}