arctanh(arcsin(x)*sin(x))=2/2!*x^2+280/6!*x^6+1344/8!*x^8...

A012336

arctanh(arcsin(x)*sin(x))=2/2!*x^2+280/6!*x^6+1344/8!*x^8...

Terms

    a(0) =2a(1) =0a(2) =280a(3) =1344a(4) =1012768a(5) =24428800a(6) =20827231360

External references