Number of n X 4 0..3 arrays with some element plus some horizontally or antidiagonally adjacent neighbor totalling three exactly once.
A269272
Number of n X 4 0..3 arrays with some element plus some horizontally or antidiagonally adjacent neighbor totalling three exactly once.
Terms
- a(0) =108a(1) =13896a(2) =1104264a(3) =74853576a(4) =4684312584a(5) =279339197256
External references
- oeis: A269272