Number of nX7 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 1 0 and 1 0 1 vertically.
A207857
Number of nX7 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 1 0 and 1 0 1 vertically.
Terms
- a(0) =40a(1) =1600a(2) =13230a(3) =178088a(4) =2047902a(5) =24999522a(6) =298294290a(7) =3584335104a(8) =42968437070a(9) =515629329072
External references
- oeis: A207857