Half the number of (n+1)X9 binary arrays with no 2X2 subblock containing exactly one 1.
A184196
Half the number of (n+1)X9 binary arrays with no 2X2 subblock containing exactly one 1.
Terms
- a(0) =19172a(1) =2668339a(2) =327471410a(3) =42079740149
External references
- oeis: A184196