Number of (n+1)X(n+1) 0..1 arrays with each 2X2 subblock having clockwise pattern 0000 0001 0101 0111.
A259507
Number of (n+1)X(n+1) 0..1 arrays with each 2X2 subblock having clockwise pattern 0000 0001 0101 0111.
Terms
- a(0) =11a(1) =129a(2) =3270a(3) =189211a(4) =25009044a(5) =7648655920
External references
- oeis: A259507