! pipedum_17d.scl ! 243/242, 99/98, 64/63, Manuel Op de Coul, 2002 17 ! 22/21 88/81 8/7 33/28 11/9 9/7 4/3 88/63 77/54 3/2 11/7 44/27 12/7 16/9 11/6 27/14 2/1