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