Number of n X 4 binary arrays with top left element equal to 1 and no two ones adjacent horizontally or nw-se.
A228792
Number of n X 4 binary arrays with top left element equal to 1 and no two ones adjacent horizontally or nw-se.
Terms
- a(0) =3a(1) =16a(2) =97a(3) =586a(4) =3588a(5) =22060a(6) =135768a(7) =835776a(8) =5145232a(9) =31675616a(10) =195005248a(11) =1200515520a(12) =7390763648a(13) =45499943936a(14) =280112449792
External references
- oeis: A228792