// output of ./demo/comb/necklace-sigma-tau-demo.cc:
// Description:
//% necklaces via cyclic shifts and complements (sigma-tau search)

arg 1: 7 == n  [Number of bits]  default=7
   1:  ......1
   2:  .....11
   3:  ....111
   4:  ...1111
   5:  ..11111
   6:  .111111
   7:  1111111
   8:  ..111.1
   9:  ...11.1
  10:  ..11.11
  11:  .11.111
  12:  ....1.1
  13:  ...1.11
  14:  ..1.111
  15:  .1.1111
  16:  ..1.1.1
  17:  .1.1.11
  18:  ...1..1
  19:  ..1..11
 ct=19
