Number of (n+2)X(n+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00000101.
A259993
Number of (n+2)X(n+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00000101.
Terms
- a(0) =48a(1) =269a(2) =2532a(3) =12620a(4) =55276a(5) =760397a(6) =4405472a(7) =16728076a(8) =252106808a(9) =2271107674a(10) =11377346280a(11) =109672934102
External references
- oeis: A259993