Number of nX3 0..3 arrays with some element plus some horizontally, diagonally, antidiagonally or vertically adjacent neighbor totalling three no more than once.
A269189
Number of nX3 0..3 arrays with some element plus some horizontally, diagonally, antidiagonally or vertically adjacent neighbor totalling three no more than once.
Terms
- a(0) =60a(1) =708a(2) =9284a(3) =115452a(4) =1399612a(5) =16629436a(6) =194596516a(7) =2249848972a(8) =25758552060a(9) =292530733516
External references
- oeis: A269189