Name(s): t20n280
Order: 3840 = 28 · 3 · 5
Parity: -1
|Aut(K)|=|CS20(G)|= 2
Subfields: 10T7
Other representations: 12T255, 12T255, 12T255, 12T255, 20T280, 20T280, 20T280
Resolvents 2: 2T1 60: 5T4 120: 10T11 1920: 20T220