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v[1] = 1; v[2] = 1; for(n = 2, N, my(i = n + 1); v[i] = -(n^2 - n - 2 + (2*n^2 - 2*n - 4)*x + (n^2 - n - 2)*x^2)*v[i - 2] + (n + 1 + (4*n + 4)*x + (5*n + 5)*x^2 + (2*n + 2)*x^3)*deriv(v[i - 2], x) + (2*n - 1 + (2*n - 2)*x)*v[i - 1] - (1 + 3*x + 2*x^2)*deriv(v[i - 1], x)); 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-ff270bcb802a85af","steps":["\u03b3 (scale 1/2) (shift +1)","\u03b8+1","x \u21a6 x+1"],"edges":["e-977fc5754e9861fd","e-1ae338480129f9a5","e-42e5a24a96e3ca74"],"text":"A008292 \u2192 \u03b3 (scale 1/2) (shift +1) \u2192 \u03b8+1 \u2192 x \u21a6 x+1"},"headline":"A008292 \u2192 \u03b3 (scale 1/2) (shift +1) \u2192 \u03b8+1 \u2192 x \u21a6 x+1","chain":null}