// output of ./demo/bits/thue-morse-demo.cc:
// Description:
//% Generate the Thue-Morse sequence

arg 1: 64 == n  [Print this many values of the sequence.]  default=64
arg 2: 0 == k  [Start point of the sequence.]  default=0
.11.1..11..1.11.1..1.11..11.1..11..1.11..11.1..1.11.1..11..1.11.