Denominator of [x^(2n+1)] in the Taylor expansion arcsinh(cosec(x) - cot(x)).

A013523

Denominator of [x^(2n+1)] in the Taylor expansion arcsinh(cosec(x) - cot(x)).

Terms

    a(0) =2a(1) =48a(2) =768a(3) =645120a(4) =37158912a(5) =81749606400a(6) =784796221440

External references