Number of nX6 0..4 arrays with some element plus some horizontally, diagonally, antidiagonally or vertically adjacent neighbor totalling four exactly once.
A269827
Number of nX6 0..4 arrays with some element plus some horizontally, diagonally, antidiagonally or vertically adjacent neighbor totalling four exactly once.
Terms
- a(0) =6400a(1) =5145736a(2) =2472983556
External references
- oeis: A269827