cosh(arcsin(arcsin(x)))=1+1/2!*x^2+9/4!*x^4+249/6!*x^6+14129/8!*x^8...
A012072
cosh(arcsin(arcsin(x)))=1+1/2!*x^2+9/4!*x^4+249/6!*x^6+14129/8!*x^8...
Terms
- a(0) =1a(1) =1a(2) =9a(3) =249a(4) =14129a(5) =1362961a(6) =200409465a(7) =41812246345
External references
- oeis: A012072