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! diff31-q.scl ! (31, 15, 7) type Q cyclic difference set, 31-tET 16 ! 38.70968 77.41935 154.83871 193.54839 270.96774 309.67742 348.38710 387.09677 541.93548 619.35484 696.77419 735.48387 774.19355 967.74194 1083.87097 2/1