arcsinh(sec(x)*tan(x))=x+4/3!*x^3+20/5!*x^5-296/7!*x^7-13360/9!*x^9...

A012797

arcsinh(sec(x)*tan(x))=x+4/3!*x^3+20/5!*x^5-296/7!*x^7-13360/9!*x^9...

Terms

    a(0) =1a(1) =4a(2) =20a(3) =-296a(4) =-13360a(5) =1256704a(6) =189575360a(7) =-11506868096

External references