Number of n X n binary arrays without the pattern 1 1 1 diagonally, vertically or horizontally.
A188560
Number of n X n binary arrays without the pattern 1 1 1 diagonally, vertically or horizontally.
Terms
- a(0) =2a(1) =16a(2) =247a(3) =13306a(4) =2109386a(5) =924245906
External references
- oeis: A188560