N = 169

[C1] non-units	[C2] #non-units lead to same #solution for	[C3] #solution for = non-units in C1
0	1	325
52, 156, 117, 39, 104, 65, 143, 130, 78, 26, 13, 91	12	156
	C2TC3 = #ways delta can be non-unit	2197

Total non-singular EC over Z₁₆₉ = 169² - #ways delta can be non-unit (C₂^TC₃) = 26364