157000domain: NAppears in sequencesa(n) = 4*n^4 + 17*n^2 + 4.at n=14A156701Triangle T(n,k) by rows: number of ways k dominoes can be placed on an n X n chessboard, k>=0.at n=24A242861Number of 5-matchings of the n X n grid graph.at n=5A243217