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