OFFSET
1,3
FORMULA
Recurrence: 8*(n-1)*n*(79*n - 186)*a(n) = - 2*(n-1)*(474*n^2 - 1669*n + 1510)*a(n-1) + (5293*n^3 - 33792*n^2 + 74125*n - 56126)*a(n-2) + (12719*n^3 - 97096*n^2 + 242641*n - 190562)*a(n-3) + (n-4)*(8927*n^2 - 44244*n + 45159)*a(n-4) + 23*(n-5)*(n-4)*(79*n - 107)*a(n-5). - Vaclav Kotesovec, Jan 02 2021
MATHEMATICA
Rest[CoefficientList[InverseSeries[Series[x*(1 + 2x - x^2)/(1 + 3x + 2x^2 + x^3), {x, 0, 40}], x], x]] (* Vaclav Kotesovec, Jan 02 2021 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved