Number of nX7 0..2 arrays avoiding 11 horizontally, 22 vertically and 00 diagonally or antidiagonally.
A229379
Number of nX7 0..2 arrays avoiding 11 horizontally, 22 vertically and 00 diagonally or antidiagonally.
Terms
- a(0) =1224a(1) =36374a(2) =2486980a(3) =138118032a(4) =8454015792a(5) =492938029980
External references
- oeis: A229379