arcsinh(tanh(x)*arctan(x))=2/2!*x^2-16/4!*x^4+200/6!*x^6+1024/8!*x^8...
A012683
arcsinh(tanh(x)*arctan(x))=2/2!*x^2-16/4!*x^4+200/6!*x^6+1024/8!*x^8...
Terms
- a(0) =2a(1) =-16a(2) =200a(3) =1024a(4) =-523232a(5) =36263680a(6) =7024697472
External references
- oeis: A012683