3-3, (034), XM7(5)no3
   
Interval-content vector <101100>
Distance (26/3)*

the minimum Euclidean distance from this set to any transposition of the perfectly even 3 note chord, in semitones

Ancohemitonic chromatic-cluser-free
Atritonic set contains no tritones
Hemitonic set contains one or more semitones