arctanh(sinh(x)*arctan(x)) = 2/2!*x^2 - 4/4!*x^4 + 350/6!*x^6 - 11240/8!*x^8 + ...

A012562

arctanh(sinh(x)*arctan(x)) = 2/2!*x^2 - 4/4!*x^4 + 350/6!*x^6 - 11240/8!*x^8 + ...

Terms

    a(0) =0a(1) =2a(2) =-4a(3) =350a(4) =-11240a(5) =1703578a(6) =-193890860a(7) =49492653366

External references