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v[1] = 1; v[2] = 1; v[3] = 6 + 5*x; v[4] = 36 + 35*x; for(n = 5, N, my(i = n); v[i] = -x^2*v[i - 4] + (16 + 12*x)*v[i - 3] - (4 - 2*x)*v[i - 2] + 4*v[i - 1]); v};\nrow(n, p) = {my(c = Vecrev(p)); c};\nT(N) = {my(v = P(N)); concat(vector(#v, i, row(i, v[i])))};\nT(10)","reading":{"first_row":1,"offset":1,"reversed":false,"trim_zeros":"none","regular_triangle":false}}],"derivation":{"root":"n-ba8de4e02acfb6ca","steps":["Veronese 2","x \u21a6 x+1"],"edges":["e-d03002d6b7efed5a","e-cf8096ccb888e607"],"text":"A091042 \u2192 Veronese 2 \u2192 x \u21a6 x+1"},"headline":"A091042 \u2192 Veronese 2 \u2192 x \u21a6 x+1","chain":null}