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