38720000000domain: NAppears in sequencesNumber of spanning trees in C_5 X P_n.at n=4A003733Number A(n,k) of spanning trees in C_k X P_n; square array A(n,k), n>=1, k>=1, read by antidiagonals.at n=40A173958Number of spanning trees in C_n X P_n.at n=4A252767