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