Number of 5Xn 0..1 arrays with every element equal to 1, 2 or 3 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A302228
Number of 5Xn 0..1 arrays with every element equal to 1, 2 or 3 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =0a(1) =111a(2) =675a(3) =4237a(4) =40395a(5) =338204a(6) =3018243a(7) =26373655a(8) =229022022a(9) =2020776808a(10) =17623530150a(11) =154526692002
External references
- oeis: A302228