Expansion of e.g.f. log(1+sinh(x)*x) (even powers only).

A009360

Expansion of e.g.f. log(1+sinh(x)*x) (even powers only).

Terms

    a(0) =0a(1) =2a(2) =-8a(3) =126a(4) =-4248a(5) =246250a(6) =-21819060a(7) =2741961054a(8) =-463859694704

External references