r=1, both prime powers q <= 3000 (465 values): q WITHOUT a point with c != 0: []
   largest such q: None ; Q_r(odd) = 16, Q_r(even) = 4
time 0.4s
r=2, both prime powers q <= 6000 (826 values): q WITHOUT a point with c != 0: [3, 4, 5, 8]
   largest such q: 8 ; Q_r(odd) = 484, Q_r(even) = 64
time 1.4s
r=3, even prime powers q <= 140000 (16 values): q WITHOUT a point with c != 0: [4, 8, 32]
   largest such q: 32 ; Q_r(odd) = 12544, Q_r(even) = 1936
time 1.5s
r=4, even prime powers q <= 140000 (16 values): q WITHOUT a point with c != 0: [4, 8, 16, 32]
   largest such q: 32 ; Q_r(odd) = 258064, Q_r(even) = 44944
time 1.5s
r=3, odd prime powers q <= 30000 (3306 values): q WITHOUT a point with c != 0: [3, 5, 7, 9]
   largest such q: 9 ; Q_r(odd) = 12544, Q_r(even) = 1936
time 32.1s
