248303

Appears in sequences

• Number of (n+4)X(n+4) binary arrays with every 1 having exactly three king-move neighbors equal to 1 but with no 2X2 blocks of 1s.at n=5A183457
• Number of (n+4)X10 binary arrays with every 1 having exactly three king-move neighbors equal to 1 but with no 2X2 blocks of 1s.at n=5A183463
• Coefficient of x^n in the expansion of 1/( (1-x) * (1-x^3) )^n.at n=10A370272