Thue-Morse

First 8 of an infinite sequence

.say for (0, { '0' ~ @_.join.trans( "01" => "10", :g) } ... *)[^8];

Output:

0
01
0110
01101001
0110100110010110
01101001100101101001011001101001
0110100110010110100101100110100110010110011010010110100110010110
01101001100101101001011001101001100101100110100101101001100101101001011001101001011010011001011001101001100101101001011001101001
^C