! pipedum_53b.scl ! 225/224, 1728/1715, 3125/3087, Gene Ward Smith, 2002 53 ! 50/49 36/35 25/24 21/20 15/14 375/343 54/49 10/9 28/25 8/7 144/125 7/6 25/21 6/5 60/49 216/175 5/4 125/98 9/7 98/75 450/343 4/3 168/125 48/35 25/18 7/5 10/7 36/25 72/49 125/84 3/2 75/49 54/35 14/9 196/125 8/5 80/49 288/175 5/3 42/25 12/7 600/343 7/4 25/14 9/5 686/375 90/49 28/15 40/21 48/25 96/49 49/25 2/1