cosh(cos(x)-cosh(x))=1+12/4!*x^4+1792/8!*x^8+889152/12!*x^12...

A013479

cosh(cos(x)-cosh(x))=1+12/4!*x^4+1792/8!*x^8+889152/12!*x^12...

Terms

    a(0) =1a(1) =12a(2) =1792a(3) =889152a(4) =1045556992

External references