Number of nX7 0..1 arrays avoiding 0 0 0 horizontally and 1 0 1 vertically.
A206870
Number of nX7 0..1 arrays avoiding 0 0 0 horizontally and 1 0 1 vertically.
Terms
- a(0) =81a(1) =6561a(2) =165783a(3) =4108471a(4) =115505069a(5) =3254925997a(6) =90497940567
External references
- oeis: A206870