Number of (n+1)X(7+1) 0..6 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 30, and no two adjacent values equal.
A233891
Number of (n+1)X(7+1) 0..6 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 30, and no two adjacent values equal.
Terms
- a(0) =161168a(1) =5829956a(2) =197246776a(3) =8442821772a(4) =317752132336
External references
- oeis: A233891