arctanh(arcsin(x)+sin(x))=2*x+16/3!*x^3+778/5!*x^5+94064/7!*x^7...

A012920

arctanh(arcsin(x)+sin(x))=2*x+16/3!*x^3+778/5!*x^5+94064/7!*x^7...

Terms

    a(0) =2a(1) =16a(2) =778a(3) =94064a(4) =21203218a(5) =7679356144

External references