-5046domain: ZAppears in sequencesTriangle formed by coefficients of the expansion of p(x,n) = (1+x-x^2)^(n+1)*Sum_{j >= 0} (2*j+1)^n*(-x + x^2)^j.at n=28A156918E.g.f. satisfies y'' + y' + x^3*y = 0 with y(0)=1, y'(0)=0.at n=11A318237