1059584

Appears in sequences

• Number of (3+2) X (n+2) 0..3 arrays with every 3 X 3 subblock row and diagonal sum equal to 0 2 3 6 or 7 and every 3 X 3 column and antidiagonal sum not equal to 0 2 3 6 or 7.at n=19A252535
• a(n) = (1/4)*A073388(n+1).at n=12A291385