! pipedum_19m.scl ! 126/125, 1728/1715, 16/15, Gene Ward Smith, 2002 19 ! 36/35 28/25 8/7 7/6 6/5 175/144 4/3 48/35 7/5 10/7 14/9 8/5 288/175 5/3 12/7 28/15 48/25 35/18 2/1