! pipedum_15e.scl ! 64/63, 875/864, 1029/1024, Paul Erlich, 2001 15 ! 256/245 35/32 8/7 6/5 80/63 21/16 48/35 35/24 32/21 63/40 5/3 7/4 64/35 245/128 2/1