Number of n X 4 0..2 arrays with some element plus some horizontally or antidiagonally adjacent neighbor totalling two exactly once.
A268900
Number of n X 4 0..2 arrays with some element plus some horizontally or antidiagonally adjacent neighbor totalling two exactly once.
Terms
- a(0) =36a(1) =696a(2) =9720a(3) =118584a(4) =1347192a(5) =14644152a(6) =154472184a(7) =1594323000a(8) =16185567096a(9) =162200044728
External references
- oeis: A268900