Numerator of [x^(2n+1)] of the Taylor expansion tanh(cosec(x) - cot(x)).

A013524

Numerator of [x^(2n+1)] of the Taylor expansion tanh(cosec(x) - cot(x)).

Terms

    a(0) =1a(1) =0a(2) =-1a(3) =-1a(4) =-1a(5) =13a(6) =7951a(7) =21599a(8) =-294997a(9) =-275833a(10) =-60527057a(11) =-6338125867a(12) =37620769159

External references