! prod7d.scl ! Double Cubic Corner 7-limit. Chalmers '96 39 ! 64/63 128/125 256/245 16/15 35/32 9/8 8/7 147/128 75/64 32/27 128/105 5/4 32/25 64/49 21/16 4/3 343/256 175/128 45/32 64/45 256/175 512/343 3/2 32/21 49/32 25/16 8/5 105/64 27/16 128/75 256/147 7/4 16/9 64/35 15/8 245/128 125/64 63/32 2/1