5783416domain: NAppears in sequencesNumber of (n+1) X (3+1) 0..3 arrays with every 2 X 2 subblock summing to a prime.at n=2A251454T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock summing to a prime.at n=12A251459