Expansion of e.g.f. cosh(tan(x)*sinh(x)) (only even powers).

A009165

Expansion of e.g.f. cosh(tan(x)*sinh(x)) (only even powers).

Terms

    a(0) =1a(1) =0a(2) =12a(3) =360a(4) =14672a(5) =947520a(6) =89973312a(7) =11518066560

External references