n56 1,2,3,4,5,6,7; 0,8,9,10,11,12,13; 0,8,14,15,16,17,18; 0,9,14,19,20,21,22; 0,5,6,10,15,19,23; 0,4,6,11,16,20,24; 0,4,5,12,17,21,25; 0,13,18,22,23,24,25; 1,2,26,27,28,29,30; 1,3,26,31,32,33,34; 1,4,11,12,27,31,35; 1,5,10,12,28,32,36; 1,6,10,11,29,33,37; 1,7,30,34,35,36,37; 2,3,30,34,38,39,40; 2,4,16,17,27,38,41; 2,5,15,17,28,39,42; 2,6,15,16,29,40,43; 2,7,26,34,41,42,43; 3,4,20,21,31,38,44; 3,5,19,21,32,39,45; 3,6,19,20,33,40,46; 3,7,26,30,44,45,46; 4,7,24,25,35,41,44; 5,7,23,25,36,42,45; 6,7,23,24,37,43,46; 8,9,18,22,47,48,49; 8,10,15,28,29,47,50; 8,11,16,27,29,48,51; 8,12,17,27,28,49,52; 8,13,14,22,50,51,52; 9,10,19,32,33,47,53; 9,11,20,31,33,48,54; 9,12,21,31,32,49,55; 9,13,14,18,53,54,55; 10,13,23,36,37,50,53; 11,13,24,35,37,51,54; 12,13,25,35,36,52,55; 14,15,19,39,40,50,53; 14,16,20,38,40,51,54; 14,17,21,38,39,52,55; 15,18,23,42,43,47,53; 16,18,24,41,43,48,54; 17,18,25,41,42,49,55; 19,22,23,45,46,47,50; 20,22,24,44,46,48,51; 21,22,25,44,45,49,52; 26,27,31,41,44,48,49; 26,28,32,42,45,47,49; 26,29,33,43,46,47,48; 27,30,35,38,44,51,52; 28,30,36,39,45,50,52; 29,30,37,40,46,50,51; 31,34,35,38,41,54,55; 32,34,36,39,42,53,55; 33,34,37,40,43,53,54.