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v[1] = 484 + 1760*x + 1200*x^2; for(n = 1, N, my(i = n + 1); v[i] = ((242 + (220*n + 880)*x + (200*n + 600)*x^2)*v[i - 1])/(11 + (10*n + 20)*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-ec89fb3fc20684fc","steps":["basis A013609","\u03b8+1"],"edges":["e-0c8cc5263f914382","e-30c552b958f22b51"],"text":"A038336 \u2192 basis A013609 \u2192 \u03b8+1"},"headline":"A038336 \u2192 basis A013609 \u2192 \u03b8+1","chain":null}