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v[1] = 0; v[2] = 1; v[3] = 4; v[4] = 11 + x; for(n = 5, N, my(i = n); 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, v[i])))};\nT(10)","reading":{"first_row":1,"offset":1,"reversed":false,"trim_zeros":"none","regular_triangle":false}}],"derivation":{"root":"n-976cdb6e4a693ec8","steps":["Veronese 2 (j=1)","x \u21a6 x+1"],"edges":["e-40caf6cac4d83759","e-5e7dd876c5ce9c5b"],"text":"A078812 \u2192 Veronese 2 (j=1) \u2192 x \u21a6 x+1"},"headline":"A078812 \u2192 Veronese 2 (j=1) \u2192 x \u21a6 x+1","chain":null}