Number of nX7 0..1 arrays avoiding the patterns 0 1 0 or 1 0 1 in any row, column, diagonal or antidiagonal.
A206986
Number of nX7 0..1 arrays avoiding the patterns 0 1 0 or 1 0 1 in any row, column, diagonal or antidiagonal.
Terms
- a(0) =42a(1) =1764a(2) =2754a(3) =18528a(4) =106110a(5) =539576a(6) =2926752a(7) =16410772a(8) =88554260a(9) =477698908a(10) =2619259634a(11) =14280032054a(12) =77486975514a(13) =422191223508
External references
- oeis: A206986