Number of nX7 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 1 1 and 1 1 0 vertically.
A207884
Number of nX7 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 1 1 and 1 1 0 vertically.
Terms
- a(0) =28a(1) =784a(2) =2654a(3) =8652a(4) =33976a(5) =138552a(6) =618202a(7) =2857532a(8) =13771096a(9) =67756306a(10) =339739264a(11) =1722062016a(12) =8806555398a(13) =45292066892a(14) =233975264688
External references
- oeis: A207884