28698007940
domain: N
Appears in sequences
- Number of n X 3 0..3 arrays avoiding the pattern z z+1 z horizontally and z z-1 z vertically.at n=5A209087
- Number of nX6 0..3 arrays avoiding the pattern z z+1 z horizontally and z z-1 z vertically.at n=2A209090
- T(n,k)=Number of nXk 0..3 arrays avoiding the pattern z z+1 z horizontally and z z-1 z vertically.at n=30A209092