Numerator of [x^(2n)] of the Taylor expansion log(cosec(x)*arctan(x)).

A012857

Numerator of [x^(2n)] of the Taylor expansion log(cosec(x)*arctan(x)).

Terms

    a(0) =0a(1) =-1a(2) =3a(3) =-50a(4) =203a(5) =-7472a(6) =319561a(7) =-4725019a(8) =8552625673

External references