Half the number of (n+1) X 4 binary arrays with no 2 X 2 subblock having exactly 2 ones.
A183776
Half the number of (n+1) X 4 binary arrays with no 2 X 2 subblock having exactly 2 ones.
Terms
- a(0) =8a(1) =33a(2) =161a(3) =730a(4) =3435a(5) =15887a(6) =74148a(7) =344483a(8) =1604473a(9) =7462786a(10) =34738575a(11) =161631659a(12) =752241404a(13) =3500410439a(14) =16290047469a(15) =75805472562a(16) =352771994195
External references
- oeis: A183776