Number of nX6 0..3 arrays with some element plus some horizontally or vertically adjacent neighbor totalling three no more than once.
A269107
Number of nX6 0..3 arrays with some element plus some horizontally or vertically adjacent neighbor totalling three no more than once.
Terms
- a(0) =2592a(1) =1090740a(2) =342055548a(3) =95166487524
External references
- oeis: A269107