Number of 7Xn 0..1 arrays avoiding 0 0 0 and 1 1 1 horizontally and 0 0 1 and 0 1 1 vertically.
A208072
Number of 7Xn 0..1 arrays avoiding 0 0 0 and 1 1 1 horizontally and 0 0 1 and 0 1 1 vertically.
Terms
- a(0) =20a(1) =400a(2) =432a(3) =2688a(4) =11424a(5) =44064a(6) =198000a(7) =844800a(8) =3542544a(9) =15213984a(10) =64859616a(11) =275633280a(12) =1175819856a(13) =5010674496a(14) =21340192176a(15) =90942560256a(16) =387500834976
External references
- oeis: A208072