Numerator of [x^(4n+2)] in the Taylor series -log(cot(x)*tanh(x)).

A012870

Numerator of [x^(4n+2)] in the Taylor series -log(cot(x)*tanh(x)).

Terms

    a(0) =2a(1) =124a(2) =292a(3) =65528a(4) =22998766228a(5) =26598037736

External references