sech(cos(x)-cosh(x)) = 1-12/4!*x^4+8288/8!*x^8-39475392/12!*x^12...
A013481
sech(cos(x)-cosh(x)) = 1-12/4!*x^4+8288/8!*x^8-39475392/12!*x^12...
Terms
- a(0) =1a(1) =-12a(2) =8288a(3) =-39475392a(4) =689369608448
External references
- oeis: A013481
A013481
sech(cos(x)-cosh(x)) = 1-12/4!*x^4+8288/8!*x^8-39475392/12!*x^12...