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v[1] = 484 + 2112*x + 1296*x^2; for(n = 1, N, my(i = n + 1); v[i] = ((2662 + (4356*n + 13068)*x + (792*n^2 + 7128*n + 13464)*x^2 + (432*n^2 + 2592*n + 3888)*x^3)*v[i - 1])/(121 + (198*n + 330)*x + (36*n^2 + 144*n + 144)*x^2)); 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-29d7c5a1e19b9d74","steps":["x \u21a6 x+1","(\u03b8+1)\u00b2"],"edges":["e-e77df5b989acd52a","e-32f12090bb35e95d"],"text":"A038314 \u2192 x \u21a6 x+1 \u2192 (\u03b8+1)\u00b2"},"headline":"A038314 \u2192 x \u21a6 x+1 \u2192 (\u03b8+1)\u00b2","chain":null}