Number of n X n 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 0 and 0 1 0 vertically.
A208073
Number of n X n 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 0 and 0 1 0 vertically.
Terms
- a(0) =2a(1) =16a(2) =126a(3) =2601a(4) =139605a(5) =17098225a(6) =4412968520
External references
- oeis: A208073