579830068

Appears in sequences

• Number of (n+1)X(4+1) 0..3 arrays with every 2X2 subblock summing to 3 6 or 9.at n=4A251296
• Number of (n+1)X(5+1) 0..3 arrays with every 2X2 subblock summing to 3 6 or 9.at n=3A251297