18032679492
domain: N
Appears in sequences
- Number of nX7 0..n+7-2 arrays with upper left zero and lower right n+7-2 and each element differing from its horizontal and antidiagonal neighbors by one or two.at n=3A265465
- Number of 4Xn 0..4+n-2 arrays with upper left zero and lower right 4+n-2 and each element differing from its horizontal and antidiagonal neighbors by one or two.at n=6A265469