255651

Appears in sequences

• Number of n X n binary arrays with some element plus some horizontally or vertically adjacent neighbor totalling two no more than once.at n=4A268743
• Number of nX5 binary arrays with some element plus some horizontally or vertically adjacent neighbor totalling two no more than once.at n=4A268747
• T(n,k)=Number of nXk binary arrays with some element plus some horizontally or vertically adjacent neighbor totalling two no more than once.at n=40A268750