1/4 the number of (n+1)X6 0..3 arrays with every 2X2 subblock having distinct edge sums.
A209733
1/4 the number of (n+1)X6 0..3 arrays with every 2X2 subblock having distinct edge sums.
Terms
- a(0) =21976a(1) =775096a(2) =28927984a(3) =1138541280a(4) =45147495264
External references
- oeis: A209733