Expansion of cos(sin(x)*cosh(x)), even terms only.

A009047

Expansion of cos(sin(x)*cosh(x)), even terms only.

Terms

    a(0) =1a(1) =-1a(2) =-7a(3) =23a(4) =1297a(5) =-6129a(6) =-894903a(7) =829671a(8) =1879275169a(9) =1886150559

External references