36214domain: NAppears in sequencesG.f. satisfies: A(x) = Sum_{n>=0} x^(n^2) * A(x)^(n^2+n).at n=10A157135Number of irredundant sets in the n-prism graph.at n=9A290511Triangle T(n,k) read by rows: number of labeled 2-regular digraphs (multiple arcs and loops allowed) on n nodes with k components.at n=23A307804