Half the number of n X 3 binary arrays with each element equal to at least one neighbor.
A180763
Half the number of n X 3 binary arrays with each element equal to at least one neighbor.
Terms
- a(0) =1a(1) =11a(2) =63a(3) =390a(4) =2385a(5) =14621a(6) =89602a(7) =549125a(8) =3365327a(9) =20624430a(10) =126397089a(11) =774626021a(12) =4747304792a(13) =29093913597a(14) =178302394173
External references
- oeis: A180763