140781

Appears in sequences

• Number of (n+2) X (2+2) 0..3 arrays with every 3 X 3 subblock row and column sum not equal to 0 3 5 6 or 7 and every 3 X 3 diagonal and antidiagonal sum equal to 0 3 5 6 or 7.at n=24A252248
• Expansion of 1/((1-x) * (1-4*x)^3).at n=6A367592