-2365domain: ZAppears in sequencesExpansion of (1-x)/(1-2*x+x^2+2*x^3).at n=16A078002Numerator of Bernoulli(n, -5/6).at n=5A158300Expansion of e.g.f. sin(x*tan(x/2)) (even powers only).at n=5A296841