Number of n X n 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 1 0 and 1 1 1 vertically.
A209219
Number of n X n 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 1 0 and 1 1 1 vertically.
Terms
- a(0) =2a(1) =16a(2) =60a(3) =196a(4) =900a(5) =5476a(6) =38232a(7) =287296a(8) =3132576a(9) =37625956a(10) =515992736a(11) =9773299600a(12) =197179936872
External references
- oeis: A209219