Number of 7Xn 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 0 and 1 1 1 vertically.

A207351

Number of 7Xn 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 0 and 1 1 1 vertically.

Terms

    a(0) =42a(1) =1764a(2) =8928a(3) =43260a(4) =186002a(5) =684324a(6) =2367656a(7) =8000806a(8) =26057006a(9) =82907430a(10) =260627110a(11) =806084422a(12) =2476671718a(13) =7545089216a(14) =22861190904a(15) =68993933764a(16) =207422313718a(17) =622180142516

External references