n=6: 1905 reachable points of length <= 60, 663 classes of parallel directions
  class of alpha=0.052438: floating billiard finds 2 of the 2 (length, factor) pairs of the unfolding, none else
  class of alpha=0.095930: floating billiard finds 2 of the 2 (length, factor) pairs of the unfolding, none else
  class of alpha=0.938010: floating billiard finds 1 of the 1 (length, factor) pairs of the unfolding, none else
  class of alpha=1.254138: floating billiard finds 2 of the 2 (length, factor) pairs of the unfolding, none else
  class of alpha=0.363327: floating billiard finds 1 of the 1 (length, factor) pairs of the unfolding, none else
  class of alpha=1.429767: floating billiard finds 2 of the 2 (length, factor) pairs of the unfolding, none else
  class of alpha=0.400506: floating billiard finds 2 of the 2 (length, factor) pairs of the unfolding, none else
  class of alpha=0.461819: floating billiard finds 2 of the 2 (length, factor) pairs of the unfolding, none else
bands computed: 5296 (rays from O, both sides); largest number of segments of a simple preclosed piece: 138
even n: every factor divides n/2; classes by (class name of Sect. 1 of the source, factors in the order of increasing preclosed length, ratios of the preclosed lengths):
  even  factors (1, 1)       ratios (1.0, 2.0)                   classes: 44
  even  factors (3, 1)       ratios (1.0, 2.0)                   classes: 122
  odd   factors (1,)         ratios (1.0,)                       classes: 123
  odd   factors (3,)         ratios (1.0,)                       classes: 374
DONE n=6 [2.8s]
