tanh(tanh(x)*arctan(x))=2/2!*x^2-16/4!*x^4+80/6!*x^6+14464/8!*x^8...
A012684
tanh(tanh(x)*arctan(x))=2/2!*x^2-16/4!*x^4+80/6!*x^6+14464/8!*x^8...
Terms
- a(0) =2a(1) =-16a(2) =80a(3) =14464a(4) =-1924352a(5) =182456320a(6) =-4821633024
External references
- oeis: A012684