172nd octave temperaments.
Named after the 172nd element and defined as 1376 & 2236.
Subgroup: 2.3.5.7.11.13
Comma list: 9801/9800, 1990656/1990625, 456533/456300, 22151168/22143375
Mapping: 172 172 500 181 595 234, 0 1 -1 3 0 4
generators: 18375/18304, 3/2