Number of 7Xn 0..1 arrays with every element equal to 0, 1 or 3 horizontally or antidiagonally adjacent elements, with upper left element zero.
A301890
Number of 7Xn 0..1 arrays with every element equal to 0, 1 or 3 horizontally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =64a(1) =610a(2) =2841a(3) =7883a(4) =31173a(5) =240222a(6) =1454613a(7) =7734317a(8) =39492565a(9) =231010966a(10) =1368292090a(11) =7943126611a(12) =45394661195a(13) =264505253778
External references
- oeis: A301890