128724

Appears in sequences

• Number of (n+2) X (3+2) 0..1 arrays with every 2 X 2 and 3 X 3 subblock diagonal maximum minus antidiagonal minimum nondecreasing horizontally and vertically.at n=27A253505
• a(n) = 3*n*(n^2 + 3*n + 4).at n=34A280304