Subgroup: 3.5.7
Comma list: [-50 16 15⟩
Mapping: [⟨1 5 -2], ⟨0 -30 32]]
POTE generators: ~35/27 = 224.1303
Optimal ET sequence: b17, b89, b106, b123, b140, b157, b297, b454, b1205, b1659
Badness: 6.879