427900
domain: N
Appears in sequences
- Number of nX7 0..1 arrays with every 1 horizontally or antidiagonally adjacent to 0 or 2 neighboring 1s.at n=3A297337
- T(n,k)=Number of nXk 0..1 arrays with every 1 horizontally or antidiagonally adjacent to 0 or 2 neighboring 1s.at n=48A297338
- Number of 4Xn 0..1 arrays with every 1 horizontally or antidiagonally adjacent to 0 or 2 neighboring 1s.at n=6A297341