Number of nX7 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 1 1 and 1 0 1 vertically.

A207268

Number of nX7 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 1 1 and 1 0 1 vertically.

Terms

    a(0) =25a(1) =625a(2) =2141a(3) =8327a(4) =38911a(5) =140295a(6) =467686a(7) =1623957a(8) =5467589a(9) =17779942a(10) =57847658a(11) =186862280a(12) =594627012a(13) =1880223340a(14) =5915390781a(15) =18465652946a(16) =57306451587a(17) =177068551553a(18) =544446252694

External references