18567350

Appears in sequences

• Number of (n+1)X(2+1) 0..4 arrays with every 2X2 subblock summing to a prime.at n=3A251509
• Number of (n+1)X(4+1) 0..4 arrays with every 2X2 subblock summing to a prime.at n=1A251511
• T(n,k)=Number of (n+1)X(k+1) 0..4 arrays with every 2X2 subblock summing to a prime.at n=11A251515
• T(n,k)=Number of (n+1)X(k+1) 0..4 arrays with every 2X2 subblock summing to a prime.at n=13A251515