Number of n X n 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 1 1 and 1 1 0 vertically.
A208835
Number of n X n 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 1 1 and 1 1 0 vertically.
Terms
- a(0) =2a(1) =16a(2) =78a(3) =855a(4) =8736a(5) =272206a(6) =6206445a(7) =613538688a(8) =30091441770
External references
- oeis: A208835