583034domain: NAppears in sequencesNumber of (n+1)X(2+1) 0..6 arrays with every 2X2 subblock summing to a prime.at n=1A251612T(n,k)=Number of (n+1)X(k+1) 0..6 arrays with every 2X2 subblock summing to a prime.at n=4A251616