90954domain: NAppears in sequencesNumber of magic labelings of the Petersen graph with magic sum n.at n=17A125196Number of (6+1) X (n+1) 0..1 arrays with every 2 X 2 subblock ne-sw antidiagonal difference nondecreasing horizontally and nw+se diagonal sum nondecreasing vertically.at n=23A258559