1/4 the number of (n+1) X 8 0..2 arrays with every 2 X 2 subblock having distinct edge sums.
A209381
1/4 the number of (n+1) X 8 0..2 arrays with every 2 X 2 subblock having distinct edge sums.
Terms
- a(0) =256a(1) =882a(2) =1792a(3) =8612a(4) =18176a(5) =114056a(6) =242176a(7) =1784720a(8) =3777536a(9) =30197792a(10) =63711232a(11) =528982592a(12) =1113952256a(13) =9408350336a(14) =19793944576a(15) =168456608000a(16) =354255650816
External references
- oeis: A209381