290328domain: NAppears in sequencesNumber of permutations p of 1,2,...,n satisfying p(i+5)-p(i)<>5 for all 1<=i<=n-5.at n=9A189284Number of ways to place n nonattacking composite pieces rook + semi-rider[5,5] on an n X n chessboard.at n=8A189847Numbers n such that A277118(n) = 17.at n=41A277119