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