N = 343
[C1] non-units [C2] #non-units lead to same
#solution for discriminant
[C3] #solution for discriminant
= non-units in C1
0 1 637
196, 49, 98 3 980
336, 245, 280, 238, 182, 217, 63, 224, 203, 84, 140, 322, 161, 329, 315, 154, 105, 266, 273, 112, 189, 133, 91, 147, 35, 252, 175, 210, 168, 21, 14, 28, 56, 231, 294, 287, 42, 301, 126, 259, 119, 70, 308, 77, 7 45 294
C2TC3 = #ways delta can be non-unit 16807
Total non-singular EC over Z343 = 3432 - #ways delta can be non-unit (C2TC3) = 100842