n48 1,2,3,4,5,6,7,8; 0,3,7,9,10,11,12,13; 0,4,5,9,14,15,16,17; 0,1,7,14,18,19,20,21; 0,2,5,10,18,22,23,24; 0,2,4,11,19,25,26,27; 0,12,15,20,22,25,28,29; 0,1,3,16,23,26,28,30; 0,13,17,21,24,27,29,30; 1,2,10,11,14,16,31,32; 1,4,9,11,20,22,23,45; 1,5,9,10,19,25,28,46; 1,6,18,22,25,26,31,42; 1,8,21,30,32,42,45,46; 2,3,9,16,18,20,25,39; 2,6,19,20,23,28,31,43; 2,7,9,14,22,26,28,44; 2,8,24,27,32,39,43,44; 3,4,12,14,20,26,31,33; 3,5,11,15,23,25,31,38; 3,6,10,14,15,18,28,36; 3,8,13,30,33,36,38,39; 4,6,10,12,16,23,25,37; 4,7,10,15,19,22,31,40; 4,8,17,27,33,37,40,45; 5,6,11,12,14,19,22,41; 5,7,12,16,18,28,31,35; 5,8,17,24,35,38,41,46; 6,7,11,15,16,20,26,34; 6,8,34,36,37,41,42,43; 7,8,13,21,34,35,40,44; 9,12,15,18,19,23,26,47; 9,13,17,39,44,45,46,47; 18,21,24,35,36,39,42,47; 28,29,30,35,36,43,44,46; 26,27,30,33,34,42,44,47; 20,21,29,33,34,39,43,45; 22,24,29,40,41,42,44,45; 19,21,27,40,41,43,46,47; 14,17,21,32,33,36,41,44; 23,24,30,37,38,43,45,47; 25,27,29,37,38,39,42,46; 12,13,29,33,35,37,41,47; 15,17,29,34,36,38,40,47; 16,17,30,32,34,35,37,39; 10,13,24,32,36,37,40,46; 11,13,27,32,34,38,41,45; 31,32,33,35,38,40,42,43.