sinh(arctan(x)*sin(x))=2/2!*x^2-12/4!*x^4+310/6!*x^6-17304/8!*x^8...

A012425

sinh(arctan(x)*sin(x))=2/2!*x^2-12/4!*x^4+310/6!*x^6-17304/8!*x^8...

Terms

    a(0) =2a(1) =-12a(2) =310a(3) =-17304a(4) =1458538a(5) =-179076260a(6) =30579769246

External references