407469

Appears in sequences

• Number of (n+2)X4 0..3 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally exactly three ways, and new values 0..3 introduced in row major order.at n=9A204636
• Number of nonnegative integer matrices with sum of entries equal to n and no zero rows or columns, whose entries are all distinct.at n=30A321660