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(2*n^2+4*n+4+(4*n^3+6*n^2+8*n-2)*x+(8*n^2+4*n+2)*x^2+(4*n+2)*x^3)*P(n-1,x) - ((2*n^2+4*n+4)*x^2+(4*n+2)*x^3+2*x^4)*d/dx P(n-1,x) for n >= 2, with P(1,x) = 20 + 32*x + 8*x^2.","mathematica":"P[1, x_] := 20 + 32*x + 8*x^2;\nP[n_, x_] := P[n, x] = Expand[Together[((2*n^2 + 4*n + 4 + (4*n^3 + 6*n^2 + 8*n - 2)*x + (8*n^2 + 4*n + 2)*x^2 + (4*n + 2)*x^3)*P[n - 1, x] - ((2*n^2 + 4*n + 4)*x^2 + (4*n + 2)*x^3 + 2*x^4)*D[P[n - 1, x], x])/(n^2 + 1 + (2*n - 1)*x + x^2)]];\nTable[CoefficientList[P[n, x], x], {n, 1, 10}] // Flatten","pari":"P(N) = {my(v = vector(N)); v[1] = 20 + 32*x + 8*x^2; for(n = 2, N, my(i = n); v[i] = ((2*n^2 + 4*n + 4 + (4*n^3 + 6*n^2 + 8*n - 2)*x + (8*n^2 + 4*n + 2)*x^2 + (4*n + 2)*x^3)*v[i - 1] - ((2*n^2 + 4*n + 4)*x^2 + (4*n + 2)*x^3 + 2*x^4)*deriv(v[i - 1], x))/(n^2 + 1 + (2*n - 1)*x + x^2)); v};\nrow(n, p) = {my(c = Vecrev(p)); c};\nT(N) = {my(v = P(N)); concat(vector(#v, i, row(i, 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