E.g.f.: exp(sech(x)*arcsin(x))=1+x+1/2!*x^2-1/3!*x^3-7/4!*x^4+5/5!*x^5...

A012878

E.g.f.: exp(sech(x)*arcsin(x))=1+x+1/2!*x^2-1/3!*x^3-7/4!*x^4+5/5!*x^5...

Terms

    a(0) =1a(1) =1a(2) =1a(3) =-1a(4) =-7a(5) =5a(6) =145a(7) =499a(8) =-2063a(9) =-12055a(10) =128705a(11) =2156871a(12) =5154217a(13) =-24423763a(14) =510686033a(15) =27205910523a(16) =254809389793

External references