115505069domain: NPropertiesPrimalityPrimeyesAppears in sequencesNumber of nX7 0..1 arrays avoiding 0 0 0 horizontally and 1 0 1 vertically.at n=4A206870Number of 5Xn 0..1 arrays avoiding 0 0 0 horizontally and 1 0 1 vertically.at n=6A206874Prime numbersat n=6599852