103861domain: NAppears in sequencesEuler transform of A029767.at n=6A053483Number of ways to place zero or more nonadjacent 1,0 1,1 2,0 2,1 3,0 polyhexes in any orientation on a planar nXnXn triangular grid.at n=6A155228Primitive numbers in A158235.at n=37A158245