Number of (n+1) X (2+1) 0..2 arrays with every 2 X 2 subblock summing to a nonzero multiple of 2.
A251204
Number of (n+1) X (2+1) 0..2 arrays with every 2 X 2 subblock summing to a nonzero multiple of 2.
Terms
- a(0) =180a(1) =1246a(2) =8870a(3) =65040a(4) =489772a(5) =3775022a(6) =29664576a(7) =236740252a(8) =1912108322a(9) =15584536740a(10) =127880485540
External references
- oeis: A251204