Number of 4Xn 0..1 arrays with every 1 horizontally or antidiagonally adjacent to 1 or 2 neighboring 1s.
A297317
Number of 4Xn 0..1 arrays with every 1 horizontally or antidiagonally adjacent to 1 or 2 neighboring 1s.
Terms
- a(0) =1a(1) =65a(2) =609a(3) =3808a(4) =35476a(5) =340825a(6) =2997197a(7) =26513027a(8) =237701708a(9) =2127406714a(10) =19008671433a(11) =169867295652
External references
- oeis: A297317