tan(arcsinh(x)+arctan(x))=2*x+13/3!*x^3+305/5!*x^5+15055/7!*x^7...

A013106

tan(arcsinh(x)+arctan(x))=2*x+13/3!*x^3+305/5!*x^5+15055/7!*x^7...

Terms

    a(0) =2a(1) =13a(2) =305a(3) =15055a(4) =1273025a(5) =164517175a(6) =30146073425

External references