-sinh(log(x+1)-arctanh(x)) = 1/2!*x^2 + 6/4!*x^4 + 135/6!*x^6 + 6300/8!*x^8 + ...

A013299

-sinh(log(x+1)-arctanh(x)) = 1/2!*x^2 + 6/4!*x^4 + 135/6!*x^6 + 6300/8!*x^8 + ...

Terms

    a(0) =1a(1) =6a(2) =135a(3) =6300a(4) =496125a(5) =58939650a(6) =9833098275

External references