816667domain: NPropertiesPrimalityPrimeyesAppears in sequencesNumber of nX4 0..1 arrays avoiding 0 0 0 horizontally and 0 1 0 vertically.at n=5A207178T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 horizontally and 0 1 0 vertically.at n=41A207182Number of 6Xn 0..1 arrays avoiding 0 0 0 horizontally and 0 1 0 vertically.at n=3A207185Prime numbersat n=65168