sinh(sec(x)*arcsinh(x))=x+3/3!*x^3+45/5!*x^5+1071/7!*x^7+56697/9!*x^9...

A012827

sinh(sec(x)*arcsinh(x))=x+3/3!*x^3+45/5!*x^5+1071/7!*x^7+56697/9!*x^9...

Terms

    a(0) =1a(1) =3a(2) =45a(3) =1071a(4) =56697a(5) =3279419a(6) =376156261a(7) =35274762407

External references