Number of n X n 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 1 0 and 1 0 1 vertically.
A207913
Number of n X n 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 1 0 and 1 0 1 vertically.
Terms
- a(0) =2a(1) =16a(2) =98a(3) =1309a(4) =21145a(5) =612439a(6) =28188778a(7) =2088382007a(8) =241159388724
External references
- oeis: A207913