29078117domain: NPropertiesPrimalityPrimeyesAppears in sequencesNumber of (n+2)X(3+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 or 1 and no antidiagonal sum 0 or 1 and no row sum 0 or 1 and no column sum 0 or 1.at n=10A255022Prime numbersat n=1804198