sinh(sin(x)-arctanh(x))=-3/3!*x^3-23/5!*x^5-721/7!*x^7-47879/9!*x^9...

A013393

sinh(sin(x)-arctanh(x))=-3/3!*x^3-23/5!*x^5-721/7!*x^7-47879/9!*x^9...

Terms

    a(0) =3a(1) =23a(2) =721a(3) =47879a(4) =4585141a(5) =647541971a(6) =125142649633

External references