-103680domain: ZAppears in sequencesExpansion of log(1+x)/cosh(log(1+x)).at n=10A009430Triangular sequence based on the coefficients of the magnetic model for q=1/2: p(x,t)=Exp[x*t]*((t^2 + 1/2 - 1)/(2*t + 1/2 - 2))^2.at n=24A137481