Half the number of (n+2)X8 binary arrays with each 3X3 subblock having sum 4 or 5.
A186822
Half the number of (n+2)X8 binary arrays with each 3X3 subblock having sum 4 or 5.
Terms
- a(0) =351549a(1) =8178097a(2) =175882357a(3) =4037185979a(4) =99751773733
External references
- oeis: A186822