n16
1,2,3,4,5;
0,6,7,8,9;
0,6,10,11,12;
0,7,10,13,14;
0,8,11,13,15;
0,9,12,14,15;
1,2,13,14,15;
1,3,11,12,15;
1,4,10,12,14;
1,5,10,11,13;
2,3,8,9,15;
2,4,7,9,14;
2,5,7,8,13;
3,4,6,9,12;
3,5,6,8,11;
4,5,6,7,10.