Number of nX6 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 1 and 0 1 0 vertically.
A207240
Number of nX6 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 1 and 0 1 0 vertically.
Terms
- a(0) =18a(1) =324a(2) =1526a(3) =7165a(4) =40838a(5) =197256a(6) =886959a(7) =4132837a(8) =18825154a(9) =83118767a(10) =366894032a(11) =1612009910a(12) =7003691520a(13) =30295384994a(14) =130694823493a(15) =561304207068
External references
- oeis: A207240