Number of (n+1)X5 0..2 arrays with every 2X2 subblock having one, three or four distinct clockwise edge differences.
A209956
Number of (n+1)X5 0..2 arrays with every 2X2 subblock having one, three or four distinct clockwise edge differences.
Terms
- a(0) =36057a(1) =5569307a(2) =856216289a(3) =131724081683
External references
- oeis: A209956