889152domain: NAppears in sequencesexp(cos(x)-cosh(x))=1-2/2!*x^2+12/4!*x^4-122/6!*x^6+1792/8!*x^8...at n=6A013469cosh(cos(x)-cosh(x))=1+12/4!*x^4+1792/8!*x^8+889152/12!*x^12...at n=3A013479