361511653domain: NPropertiesPrimalityPrimeyesAppears in sequencesNumber of (n+1)X(2+1) 0..2 arrays with the maximum minus the lower median of every 2X2 subblock equal.at n=6A237844Number of (n+1) X (7+1) 0..2 arrays with the maximum minus the lower median of every 2 X 2 subblock equal.at n=1A237849Prime numbersat n=19387844