Number of n X 4 binary arrays with top left value 1 and no two ones adjacent horizontally or vertically.
A228386
Number of n X 4 binary arrays with top left value 1 and no two ones adjacent horizontally or vertically.
Terms
- a(0) =3a(1) =12a(2) =72a(3) =382a(4) =2104a(5) =11449a(6) =62546a(7) =341249a(8) =1862631a(9) =10165343a(10) =55480071a(11) =302792766a(12) =1652555713a(13) =9019158650a(14) =49223917246a(15) =268649627276
External references
- oeis: A228386