n30 1,8,15,22,29; 0,2,5,17,27; 1,3,14,20,24; 2,4,7,18,29; 3,5,12,16,22; 1,4,6,9,19; 5,7,14,21,28; 3,6,8,11,23; 0,7,9,20,26; 5,8,10,13,24; 9,11,18,22,28; 7,10,12,15,25; 4,11,13,20,27; 9,12,14,17,29; 2,6,13,15,26; 0,11,14,16,19; 4,15,17,24,28; 1,13,16,18,21; 3,10,17,19,26; 5,15,18,20,23; 2,8,12,19,21; 6,17,20,22,25; 0,4,10,21,23; 7,19,22,24,27; 2,9,16,23,25; 11,21,24,26,29; 8,14,18,25,27; 1,12,23,26,28; 6,10,16,27,29; 0,3,13,25,28.