arctanh(cos(x)*arcsin(x))=x-12/5!*x^5-168/7!*x^7+8144/9!*x^9...

A012489

arctanh(cos(x)*arcsin(x))=x-12/5!*x^5-168/7!*x^7+8144/9!*x^9...

Terms

    a(0) =1a(1) =0a(2) =-12a(3) =-168a(4) =8144a(5) =1384768a(6) =149032128a(7) =16299168896

External references