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