Number of n X 3 0..3 arrays with some element plus some horizontally or vertically adjacent neighbor totalling three no more than once.
A269104
Number of n X 3 0..3 arrays with some element plus some horizontally or vertically adjacent neighbor totalling three no more than once.
Terms
- a(0) =60a(1) =1740a(2) =40908a(3) =872460a(4) =17593092a(5) =342055548a(6) =6482020140a(7) =120520189980
External references
- oeis: A269104