2118665domain: NAppears in sequencesNumber of (n+2)X(3+2) 0..3 arrays with every row, column, diagonal or antidiagonal in each 3X3 subblock summing to a prime.at n=2A251848T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every row, column, diagonal or antidiagonal in each 3X3 subblock summing to a prime.at n=12A251852