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3*n)*x)]];\nTable[CoefficientList[P[n, x], x], {n, 1, 10}] // Flatten","pari":"P(N) = {my(v = vector(N)); v[1] = 1; for(n = 2, N, my(i = n); v[i] = ((16*n - 24 + (24*n^2 - 12*n - 36)*x + (36*n^2 - 54*n)*x^2)*v[i - 1])/(2*n + (3*n^2 - 3*n)*x)); 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-a98fae1bf9eeb913","steps":["basis A013610","\u03b8+1"],"edges":["e-13e67b7b83b67a66","e-051de40e4d9782a7"],"text":"A085880 \u2192 basis A013610 \u2192 \u03b8+1"},"headline":"A085880 \u2192 basis A013610 \u2192 \u03b8+1","chain":null}