Number of (n+1)X(5+1) 0..1 arrays with every 2X2 subblock having a single 1 or two 1s on the same edge.
A251255
Number of (n+1)X(5+1) 0..1 arrays with every 2X2 subblock having a single 1 or two 1s on the same edge.
Terms
- a(0) =180a(1) =1232a(2) =5680a(3) =38332a(4) =185620a(5) =1215600a(6) =6080510a(7) =38748690a(8) =198765264a(9) =1238605998a(10) =6482518286a(11) =39672453450a(12) =211010740516
External references
- oeis: A251255