Half the number of (n+1) X 9 binary arrays with no 2 X 2 subblock having exactly 2 ones.
A183781
Half the number of (n+1) X 9 binary arrays with no 2 X 2 subblock having exactly 2 ones.
Terms
- a(0) =256a(1) =3653a(2) =83799a(3) =1604473a(4) =34228999a(5) =701022093a(6) =14750484447a(7) =307446383061
External references
- oeis: A183781