n=49: 74 reachable points of length <= 12, 15 classes of parallel directions
  class of alpha=2.955087: floating billiard finds 24 of the 24 (length, factor) pairs of the unfolding, none else
  class of alpha=2.956384: floating billiard finds 24 of the 24 (length, factor) pairs of the unfolding, none else
  class of alpha=0.042717: floating billiard finds 24 of the 24 (length, factor) pairs of the unfolding, none else
  class of alpha=2.848574: floating billiard finds 24 of the 24 (length, factor) pairs of the unfolding, none else
bands computed: 2726 (rays from O, both sides); largest number of segments of a simple preclosed piece: 22
odd n: in every class exactly m = 24 preclosed lengths c*lambda*sin(2j pi/n)/sin(pi/n), factors d_j = n'/gcd(n',j); classes by n': {49: 12, 7: 3}
  n'=49: factors 49,49,49,49,49,49,7,49,49,49,49,49,49,7,49,49,49,49,49,49,7,49,49,49  gcd 7  a quotient is n: no  classes: 12
  n'=7: factors 7,7,7,7,7,7,1,7,7,7,7,7,7,1,7,7,7,7,7,7,1,7,7,7  gcd 1  a quotient is n: no  classes: 3
DONE n=49 [7.0s]
