4974089647domain: NAppears in sequencesSquare array T(M,N) read by antidiagonals: number of dimer tilings of a 2*M X 2*N Moebius strip.at n=49A103997Triangle read by rows: order of all-2s configuration on the n X k sandpile grid graph.at n=51A256045Number of dimer tilings of a 2*n x 8 Moebius strip.at n=5A334180