Number of 7Xn 0..1 arrays avoiding 0 0 1 and 0 1 1 horizontally and 0 1 0 and 1 0 1 vertically.
A207953
Number of 7Xn 0..1 arrays avoiding 0 0 1 and 0 1 1 horizontally and 0 1 0 and 1 0 1 vertically.
Terms
- a(0) =42a(1) =1764a(2) =14406a(3) =117649a(4) =524104a(5) =2334784a(6) =7513176a(7) =24176889a(8) =63380130a(9) =166152100a(10) =377999250a(11) =859955625a(12) =1762784400a(13) =3613452544a(14) =6837439440a(15) =12937925025a(16) =22975807530a(17) =40801576036a(18) =68811074046a(19) =116048554281a(20) =187501438872
External references
- oeis: A207953