10 ≤ C(31,21,4) ≤ 12
Created by: Kinski & Genivaldo Pereira
Lower Bound: Theorem 4, Todorov, JCTA 1985
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
1 2 3 4 5 6 7 8 9 12 13 14 15 16 17 18 19 20 22 23 24
1 2 3 4 5 6 7 8 9 12 13 14 15 16 17 18 19 20 25 26 27
1 2 3 4 5 6 7 8 9 12 13 14 15 16 17 18 19 20 28 29 30
1 2 3 4 5 6 7 8 9 12 13 14 15 16 17 18 19 20 28 29 31
1 2 7 9 10 11 12 13 16 20 21 22 23 24 25 26 27 28 29 30 31
1 3 4 5 8 10 11 12 13 19 21 22 23 24 25 26 27 28 29 30 31
1 6 10 11 12 13 14 15 17 18 21 22 23 24 25 26 27 28 29 30 31
2 3 4 6 7 10 11 15 18 19 21 22 23 24 25 26 27 28 29 30 31
2 3 5 7 8 10 11 14 17 18 21 22 23 24 25 26 27 28 29 30 31
3 5 6 8 9 10 11 15 16 20 21 22 23 24 25 26 27 28 29 30 31
4 9 10 11 14 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31