n48
1,2,3,4,5,6;
0,7,8,9,10,11;
0,7,12,13,14,15;
0,8,12,16,17,18;
0,9,13,16,19,20;
0,10,14,17,19,21;
0,11,15,18,20,21;
1,2,22,23,24,25;
1,3,22,26,27,28;
1,4,23,26,29,30;
1,5,24,27,29,31;
1,6,25,28,30,31;
2,3,25,28,32,33;
2,4,24,29,32,34;
2,5,23,29,33,35;
2,6,22,28,34,35;
3,4,26,32,36,37;
3,5,27,33,36,38;
3,6,22,25,37,38;
4,5,23,24,36,39;
4,6,30,34,37,39;
5,6,31,35,38,39;
7,8,15,18,40,41;
7,9,14,19,40,42;
7,10,13,19,41,43;
7,11,12,18,42,43;
8,9,16,40,44,45;
8,10,17,41,44,46;
8,11,12,15,45,46;
9,10,13,14,45,46;
9,11,20,42,44,46;
10,11,21,43,44,45;
12,13,16,43,45,47;
12,14,17,42,46,47;
13,15,20,41,46,47;
14,15,21,40,45,47;
16,17,19,40,41,47;
16,18,20,41,43,44;
17,18,21,40,42,44;
19,20,21,42,43,47;
22,23,26,35,36,38;
22,24,27,34,36,37;
23,25,30,33,38,39;
24,25,31,32,37,39;
26,27,30,31,37,38;
26,28,29,31,32,35;
27,28,29,30,33,34;
32,33,34,35,36,39.