5-7-9-15 by 7/4 bihexany
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A 15-odd-limit Bihexany. This creates a scale of 1 15/14 9/8 9/7 21/16 3/2 63/40 27/16 7/4 9/5 15/8 27/14 2/1, with steps of 15/14 21/20 8/7 49/48 8/7 21/20 15/14 28/27 36/35 25/24 36/35 28/27. Since half the notes in the base hexany have factors of 7 as divisors, this expands it out in a way that cancels out many of the ratios to produce other simple ones, including 5 perfect fifths. It does still concentrate them in one half of the scale though, with the other half spanned by two 8/7's and a melodically weak sixth tone.
! 5-7-9-15_by_7/4_Bihexany.scl ! 5 7 9 15 by 7/4 2-combination Bihexany 12 ! 119.442 204.910 435.084 470.781 701.955 786.422 905.865 968.825 1017.596 1088.268 1137.039 1200