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v[1] = 1; v[2] = 3; for(n = 2, N, my(i = n + 1); v[i] = -(5 - 4*x)*v[i - 2] + 4*x*deriv(v[i - 2], x) + 6*v[i - 1]); 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-01cea33b6485d9cc","steps":["Veronese 2","basis A008277"],"edges":["e-4fd32b1a93a66d21","e-483931c54c1cce72"],"text":"A038220 \u2192 Veronese 2 \u2192 basis A008277"},"headline":"A038220 \u2192 Veronese 2 \u2192 basis A008277","chain":null}