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v[1] = 1; v[2] = 1; v[3] = 1; v[4] = 2 + x; for(n = 4, N, my(i = n + 1); v[i] = -v[i - 4] + 4*v[i - 3] - (5 - 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 - 1, v[i])))};\nT(9)","reading":{"first_row":0,"offset":0,"reversed":false,"trim_zeros":"none","regular_triangle":false}}],"derivation":{"root":"n-0eba401b117f16a9","steps":["Veronese 2","x \u21a6 x+1"],"edges":["e-025ff61e57d4767d","e-9f925eef5b3b83da"],"text":"A085478 \u2192 Veronese 2 \u2192 x \u21a6 x+1"},"headline":"A085478 \u2192 Veronese 2 \u2192 x \u21a6 x+1","chain":null}
