Number of 6Xn 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 0 and 1 1 1 vertically.

A207350

Number of 6Xn 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 0 and 1 1 1 vertically.

Terms

    a(0) =26a(1) =676a(2) =2812a(3) =11230a(4) =41112a(5) =128292a(6) =388134a(7) =1134282a(8) =3225374a(9) =9002616a(10) =24769666a(11) =67483434a(12) =182349814a(13) =489763956a(14) =1309361216a(15) =3487680090a(16) =9264546642a(17) =24556015282a(18) =64977975688a(19) =171714994844a(20) =453323511688

External references