Half the number of (n+1) X (n+1) 0..2 arrays with no 2 X 2 subblock having sum 4.
A183783
Half the number of (n+1) X (n+1) 0..2 arrays with no 2 X 2 subblock having sum 4.
Terms
- a(0) =31a(1) =3552a(2) =2214457a(3) =7635071835
External references
- oeis: A183783