cosh(arctan(x)*exp(x))=1+1/2!*x^2+6/3!*x^3+17/4!*x^4+20/5!*x^5...

A012417

cosh(arctan(x)*exp(x))=1+1/2!*x^2+6/3!*x^3+17/4!*x^4+20/5!*x^5...

Terms

    a(0) =1a(1) =0a(2) =1a(3) =6a(4) =17a(5) =20a(6) =145a(7) =2170a(8) =8353a(9) =-41208a(10) =12065a(11) =8539278a(12) =24846769a(13) =-999642020a(14) =-1683957327a(15) =211007667650a(16) =379515957057

External references