Number of (n+1) X (6+1) 0..1 arrays with every 2 X 2 subblock having one or two 1's.
A251324
Number of (n+1) X (6+1) 0..1 arrays with every 2 X 2 subblock having one or two 1's.
Terms
- a(0) =1740a(1) =34288a(2) =636404a(3) =12770802a(4) =246926340a(5) =4911447738a(6) =96040080726
External references
- oeis: A251324