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