Number of n X n 0..1 arrays avoiding 0 0 1 and 0 1 1 horizontally and 0 0 1 and 1 1 0 vertically.
A207398
Number of n X n 0..1 arrays avoiding 0 0 1 and 0 1 1 horizontally and 0 0 1 and 1 1 0 vertically.
Terms
- a(0) =2a(1) =16a(2) =102a(3) =729a(4) =4212a(5) =26896a(6) =154580a(7) =970225a(8) =5697150a(9) =36000000a(10) =216023850a(11) =1377968641a(12) =8411571224a(13) =54080432704a(14) =334469528520
External references
- oeis: A207398