Number of nX7 0..1 arrays with every element equal to 1, 2, 4 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
A300638
Number of nX7 0..1 arrays with every element equal to 1, 2, 4 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =8a(1) =223a(2) =705a(3) =3313a(4) =17607a(5) =124439a(6) =865205a(7) =6105466a(8) =44264248a(9) =319622847a(10) =2311191759a(11) =16797467849a(12) =122107007666a(13) =887949403002
External references
- oeis: A300638