83769domain: NAppears in sequencesE.g.f.: cosh(exp(x)-sec(x))=1+1/2!*x^2+5/4!*x^4-20/5!*x^5+37/6!*x^6...at n=10A013337Integer part of (4th elementary symmetric function of 3,4,...,n+5)/(3+4+...+n+5).at n=11A024192G.f. A(x) satisfies A(x) = 1 / ((1 + x) * (1 - x * A(x^3))).at n=51A367693