1-3-5-7-9-11-13 enaeikosany

The simplest possible enaeikosany, comprised of two-combination sum products of the first 7 odd numbers. This creates a scale of 1 33/32 13/12 9/8 55/48 7/6 39/32 5/4 21/16 65/48 11/8 35/24 143/96 3/2 77/48 13/8 5/3 7/4 11/6 15/8 91/48 2/1, with steps of 33/32 104/99 27/26 55/54 56/55 117/112 40/39 21/20 65/63 66/65 35/33 143/140 144/143 77/72 78/77 40/39 21/20 22/21 45/44 91/90 96/91. With 10 perfect fifths and several others in the diatonic range, this gives you more than enough options to work with to produce both simple consonant chord sequences and more dissonant ones, but has quite uneven step sizes, with a ratio of nearly 10:1 between the largest and smallest one.

Circle diagram.

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1 3 5 7 9 11 13 2-combination Enaeikosany
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53.272
138.572
203.910
235.676
266.871
342.482
386.313
470.781
524.886
551.317
653.184
689.890
701.955
818.188
840.527
884.358
968.825
1049.362
1088.268
1107.398
1200