6366953472domain: NAppears in sequencesThe second left hand column of triangle A167591.at n=21A167592Denominators of expansion of (Sum_{k=1..n} 1/k) - log(n(1+1/(2n))) - gamma.at n=20A189049Number of (undirected) Hamiltonian paths in the 2n-crossed prism graph.at n=20A308136