769789domain: NPropertiesPrimalityPrimeyesAppears in sequencesNumber of (n+2)X(6+2) 0..1 arrays with every 3X3 subblock sum of the two sums of the diagonal and antidiagonal minus the two minimums of the central column and central row nondecreasing horizontally and vertically.at n=7A257207Prime numbersat n=61719