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