arctanh(sec(x)*arcsinh(x))=x+4/3!*x^3+88/5!*x^5+4184/7!*x^7...

A012830

arctanh(sec(x)*arcsinh(x))=x+4/3!*x^3+88/5!*x^5+4184/7!*x^7...

Terms

    a(0) =1a(1) =4a(2) =88a(3) =4184a(4) =398848a(5) =58835456a(6) =12993783424

External references