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