sech(arcsin(x)*exp(x))=1-1/2!*x^2-6/3!*x^3-23/4!*x^4-20/5!*x^5...

A012327

sech(arcsin(x)*exp(x))=1-1/2!*x^2-6/3!*x^3-23/4!*x^4-20/5!*x^5...

Terms

    a(0) =1a(1) =0a(2) =-1a(3) =-6a(4) =-23a(5) =-20a(6) =695a(7) =8750a(8) =59057a(9) =27096a(10) =-6378545a(11) =-112547358a(12) =-1027909159a(13) =1643389124a(14) =273544780743

External references