tan(arctanh(x)*sinh(x))=2/2!*x^2+12/4!*x^4+430/6!*x^6+27384/8!*x^8...
A012751
tan(arctanh(x)*sinh(x))=2/2!*x^2+12/4!*x^4+430/6!*x^6+27384/8!*x^8...
Terms
- a(0) =0a(1) =2a(2) =12a(3) =430a(4) =27384a(5) =2844538a(6) =444855620a(7) =96566466022
External references
- oeis: A012751