! pipedum_22f.scl ! 1728/1715, 245/243, 875/864, Paul Erlich, 2001 22 ! 36/35 1296/1225 10/9 245/216 7/6 6/5 5/4 9/7 4/3 48/35 7/5 35/24 3/2 14/9 8/5 5/3 12/7 432/245 9/5 1225/648 35/18 2/1