tanh(sec(x)*arcsin(x))=x+2/3!*x^3-20/5!*x^5-1104/7!*x^7-23728/9!*x^9...
A012790
tanh(sec(x)*arcsin(x))=x+2/3!*x^3-20/5!*x^5-1104/7!*x^7-23728/9!*x^9...
Terms
- a(0) =1a(1) =2a(2) =-20a(3) =-1104a(4) =-23728a(5) =2048224a(6) =394518592a(7) =28921612032
External references
- oeis: A012790