Expansion of e.g.f.: log(arctanh(x)+cos(x)) = x-2/2!*x^2+7/3!*x^3-28/4!*x^4+193/5!*x^5...

A013181

Expansion of e.g.f.: log(arctanh(x)+cos(x)) = x-2/2!*x^2+7/3!*x^3-28/4!*x^4+193/5!*x^5...

Terms

    a(0) =0a(1) =1a(2) =-2a(3) =7a(4) =-28a(5) =193a(6) =-1400a(7) =13319a(8) =-139424a(9) =1721281a(10) =-23379712a(11) =357281351a(12) =-5951323904a(13) =108706678273

External references