210247domain: NPropertiesPrimalityPrimeyesAppears in sequencesNumber of ways to place zero or more nonadjacent 1,0 1,1 2,0 3,1 3,2 4,1 polyhexes in any orientation on a planar nXnXn triangular grid.at n=7A155301Primes of the form 10n^2 - 3.at n=32A201962Prime numbersat n=18832