22911300

Appears in sequences

• Number of nX3 0..4 arrays with some element plus some horizontally or vertically adjacent neighbor totalling four exactly once.at n=3A270053
• Number of nX4 0..4 arrays with some element plus some horizontally or vertically adjacent neighbor totalling four exactly once.at n=2A270054
• T(n,k)=Number of nXk 0..4 arrays with some element plus some horizontally or vertically adjacent neighbor totalling four exactly once.at n=17A270058
• T(n,k)=Number of nXk 0..4 arrays with some element plus some horizontally or vertically adjacent neighbor totalling four exactly once.at n=18A270058