Number of nX7 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 1 0 and 1 1 1 vertically.
A208500
Number of nX7 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 1 0 and 1 1 1 vertically.
Terms
- a(0) =42a(1) =1764a(2) =1728a(3) =5436a(4) =13806a(5) =37430a(6) =111328a(7) =286754a(8) =844200a(9) =2336928a(10) =6407688a(11) =18684540a(12) =50681028a(13) =145645192a(14) =408090270a(15) =1135228896a(16) =3261392100a(17) =8999952300a(18) =25648313760a(19) =72191962584a(20) =201563085152a(21) =574718422958
External references
- oeis: A208500