12037997domain: NPropertiesPrimalityPrimeyesAppears in sequencesNumber of (n+1)X(6+1) 0..1 arrays with nondecreasing max(x(i,j),x(i,j-1)) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction.at n=12A250581Prime numbersat n=790367