C(13,10,3) = 4
Method of Construction: lex covering
Lower Bound: Schonheim
1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 11 12 13 1 2 3 4 8 9 10 11 12 13 1 5 6 7 8 9 10 11 12 13