1219352domain: NAppears in sequencesNumber of maximal matchings in the n-dipyramidal graph.at n=29A297064G.f. ( Chi(sqrt(x))^4 + Chi(-sqrt(x))^4 )/2, where Chi(x) = Product_{k >= 0} 1 + x^(2*k+1) is the g.f. of A000700.at n=25A366104