961126domain: NAppears in sequencesExpansion of (1+11*x+24*x^2+11*x^3+10*x^4)/(1-x)^5.at n=25A160750G.f. = b(2)^2*b(4)/(2*x^5+x^4-2*x^3-x^2-x+1), where b(k) = (1-x^k)/(1-x).at n=21A266370