Number of n X n 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 1 and 1 1 0 vertically.
A207699
Number of n X n 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 1 and 1 1 0 vertically.
Terms
- a(0) =2a(1) =16a(2) =102a(3) =729a(4) =8151a(5) =105625a(6) =1369900a(7) =19891600a(8) =334808748a(9) =6181890625a(10) =122401625127
External references
- oeis: A207699