Expansion of e.g.f. arctanh(sec(x) * log(x+1)).

A012777

Expansion of e.g.f. arctanh(sec(x) * log(x+1)).

Terms

    a(0) =0a(1) =1a(2) =-1a(3) =7a(4) =-24a(5) =223a(6) =-1635a(7) =19409a(8) =-221592a(9) =3270325a(10) =-50128965a(11) =898512371a(12) =-17140184688a(13) =364328185843

External references