23126677

Appears in sequences

• Number of (n+2)X3 0..2 arrays with each 3X3 subblock having sum 9.at n=5A187640
• T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with each 3X3 subblock having sum 9.at n=15A187645
• T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with each 3X3 subblock having sum 9.at n=20A187645