64025domain: NAppears in sequencesNumber of ways to place zero or more nonadjacent 1,0 1,1 2,0 3,1 4,1 5,2 5,3 polyhexes in any orientation on a planar nXnXn triangular grid.at n=8A155346Sum of distinct residues of all factorials mod 2^n.at n=14A210337