sinh(tanh(x)*arctan(x))=2/2!*x^2-16/4!*x^4+440/6!*x^6-25856/8!*x^8...
A012682
sinh(tanh(x)*arctan(x))=2/2!*x^2-16/4!*x^4+440/6!*x^6-25856/8!*x^8...
Terms
- a(0) =2a(1) =-16a(2) =440a(3) =-25856a(4) =2460448a(5) =-335955200a(6) =62060029824
External references
- oeis: A012682