! pipedum_17e.scl ! 245/243, 1728/1715, 32805/32768, Manuel Op de Coul, 2003 17 ! 28/27 35/32 245/216 32/27 315/256 9/7 4/3 2835/2048 81/56 245/162 128/81 105/64 245/144 16/9 945/512 27/14 2/1