123783

Appears in sequences

• Number of n X n 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 2 or 3 1's.at n=4A295345
• Number of nX5 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 2 or 3 1s.at n=4A295349
• T(n,k)=Number of nXk 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 2 or 3 1s.at n=40A295352