Number of nX6 0..3 arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling three exactly once.
A269212
Number of nX6 0..3 arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling three exactly once.
Terms
- a(0) =1620a(1) =360960a(2) =70371048a(3) =11985002256
External references
- oeis: A269212