Number of n X 4 0..2 arrays with some element plus some horizontally or antidiagonally adjacent neighbor totalling two not more than once.
A268967
Number of n X 4 0..2 arrays with some element plus some horizontally or antidiagonally adjacent neighbor totalling two not more than once.
Terms
- a(0) =60a(1) =912a(2) =11664a(3) =136080a(4) =1504656a(5) =16061328a(6) =167226768a(7) =1709114256a(8) =17218688400a(9) =171498136464
External references
- oeis: A268967