n42
1,2,3,4,5,6,7,8;
0,9,10,11,12,13,14,15;
0,5,7,9,16,17,18,19;
0,10,16,20,21,22,23,24;
0,11,17,20,25,26,27,28;
0,2,7,12,21,25,29,30;
0,13,18,22,26,29,31,32;
0,2,5,14,23,27,31,33;
0,15,19,24,28,30,32,33;
1,2,20,22,28,30,31,34;
1,3,26,28,32,37,38,40;
1,4,16,17,23,26,31,41;
1,5,14,15,16,22,32,36;
1,6,21,24,30,36,40,41;
1,7,12,15,17,20,24,37;
1,8,12,14,21,23,34,38;
2,3,11,12,27,34,37,39;
2,4,11,14,21,22,26,40;
2,6,25,28,33,35,39,40;
2,8,20,23,26,29,35,37;
3,4,9,14,19,31,32,34;
3,5,13,15,17,28,31,39;
3,6,9,12,17,25,38,41;
3,7,11,15,19,25,36,40;
3,8,13,14,26,27,36,41;
4,5,18,22,23,34,35,39;
4,6,10,11,17,19,24,39;
4,7,16,24,29,32,35,40;
4,8,9,10,18,21,29,41;
5,6,19,27,28,34,36,38;
5,8,9,13,32,33,35,38;
6,7,9,11,20,21,34,35;
6,8,10,12,20,27,30,33;
7,8,18,30,32,34,36,37;
9,15,16,20,25,29,31,33;
18,19,25,27,30,31,39,41;
12,13,23,24,29,33,39,41;
10,14,16,19,33,38,40,41;
10,15,22,29,30,37,39,40;
16,18,21,25,26,35,36,38;
10,13,17,18,23,27,37,38;
11,13,22,24,28,35,36,37.