1/4 the number of (n+1) X 6 binary arrays with equal numbers of 2 X 2 subblocks with sums 1 and 3.
A184600
1/4 the number of (n+1) X 6 binary arrays with equal numbers of 2 X 2 subblocks with sums 1 and 3.
Terms
- a(0) =214a(1) =8268a(2) =411825a(3) =22581061a(4) =1291076970a(5) =75369979530
External references
- oeis: A184600