75006354domain: NAppears in sequencesNumber of (n+1)X(5+1) 0..2 arrays with every 2X2 subblock summing to a prime and those sums nondecreasing in every row and column.at n=6A251464Number of (n+1)X(7+1) 0..2 arrays with every 2X2 subblock summing to a prime and those sums nondecreasing in every row and column.at n=4A251466