Numerator of the coefficient of x^(2n) in the expansion of 1/x^4 - 1/(3*x^2) - 1/(x^3*arctanh(x)).

A187870

Numerator of the coefficient of x^(2n) in the expansion of 1/x^4 - 1/(3*x^2) - 1/(x^3*arctanh(x)).

Terms

    a(0) =4a(1) =44a(2) =428a(3) =10196a(4) =10719068a(5) =25865068a(6) =5472607916a(7) =74185965772

External references