cosh(arctanh(x)*exp(x))=1+1/2!*x^2+6/3!*x^3+33/4!*x^4+180/5!*x^5...
A012718
cosh(arctanh(x)*exp(x))=1+1/2!*x^2+6/3!*x^3+33/4!*x^4+180/5!*x^5...
Terms
- a(0) =1a(1) =0a(2) =1a(3) =6a(4) =33a(5) =180a(6) =1185a(7) =8890a(8) =79233a(9) =769608a(10) =8392065a(11) =97609358a(12) =1249180449a(13) =16946392892a(14) =249854555041
External references
- oeis: A012718