35978029domain: NPropertiesPrimalityPrimeyesAppears in sequencesNumber of (n+1)X(5+1) 0..1 arrays with no 2X2 subblock having zero or two 1s.at n=6A251216Number of (n+1)X(7+1) 0..1 arrays with no 2X2 subblock having zero or two 1s.at n=4A251218Prime numbersat n=2202981