sin(sin(x)-arctanh(x))=-3/3!*x^3-23/5!*x^5-721/7!*x^7-32759/9!*x^9...

A013389

sin(sin(x)-arctanh(x))=-3/3!*x^3-23/5!*x^5-721/7!*x^7-32759/9!*x^9...

Terms

    a(0) =3a(1) =23a(2) =721a(3) =32759a(4) =2672461a(5) =310461227a(6) =49895013169

External references