n24
1,2,3,4,5,6,7;
0,2,7,8,9,10,11;
0,1,5,8,12,13,14;
0,5,7,15,16,17,18;
0,9,12,15,19,20,21;
0,2,3,13,16,19,22;
0,10,14,17,20,22,23;
0,1,3,11,18,21,23;
1,2,11,13,15,17,20;
1,4,14,15,16,19,23;
1,6,12,16,17,21,22;
1,7,8,18,19,20,22;
2,4,10,17,18,19,21;
2,5,8,16,20,21,23;
2,6,9,15,18,22,23;
3,4,8,9,14,21,22;
3,5,9,10,13,18,20;
3,6,8,10,12,19,23;
3,7,11,12,14,16,20;
4,5,9,11,12,17,23;
4,6,8,11,13,16,18;
4,7,10,12,13,15,22;
5,6,10,11,14,15,21;
6,7,9,13,14,17,19.