Expansion of e.g.f.: arcsin(sech(x)*log(x+1))=x-1/2!*x^2-6/4!*x^4+43/5!*x^5-195/6!*x^6...

A012872

Expansion of e.g.f.: arcsin(sech(x)*log(x+1))=x-1/2!*x^2-6/4!*x^4+43/5!*x^5-195/6!*x^6...

Terms

    a(0) =0a(1) =1a(2) =-1a(3) =0a(4) =-6a(5) =43a(6) =-195a(7) =1568a(8) =-15204a(9) =151373a(10) =-1798245a(11) =23630992a(12) =-338936730a(13) =5409752775a(14) =-93357461015

External references