Number of 7Xn 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 0 and 1 0 1 vertically.
A207789
Number of 7Xn 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 0 and 1 0 1 vertically.
Terms
- a(0) =28a(1) =784a(2) =4000a(3) =19041a(4) =75557a(5) =246087a(6) =786907a(7) =2283773a(8) =6379507a(9) =17308075a(10) =45325727a(11) =117028904a(12) =296766998a(13) =743643327a(14) =1848943779a(15) =4561246099a(16) =11201879231a(17) =27401795310a(18) =66825353776a(19) =162629732740a(20) =395022399526a(21) =958122589330
External references
- oeis: A207789