q=2048 (poly 0b100000000101), r=sqrt(2q)=64; element orders of 60 random elements: {5: 1, 89: 1, 397: 5, 1985: 16, 2047: 22, 2113: 15} (all divide 4, q-1, q+r+1 or q-r+1)
  split-torus y, quotient mode: 8 pairs, tails max=183810, mean=59894.9, time=88.6s
BEST: tail=183810 (class-cycle length 10555) with y of type q-1 (split torus, quotient by C(y))
  x = [136, 441, 580, 111, 1965, 292, 114, 1277, 295, 1955, 859, 590, 1346, 604, 284, 967]
  y = [620, 0, 0, 0, 0, 318, 0, 0, 0, 0, 931, 0, 0, 0, 0, 1724]
=> certified: mu(Sz(2048)) >= 183810
