1: 1 ~ {1}
3: 11 ~ {1,2}
7: 111 ~ {1,2,3}
15: 1111 ~ {1,2,3,4}
31: 11111 ~ {1,2,3,4,5}
95: 1011111 ~ {1,2,3,4,5,7}
127: 1111111 ~ {1,2,3,4,5,6,7}
255: 11111111 ~ {1,2,3,4,5,6,7,8}
511: 111111111 ~ {1,2,3,4,5,6,7,8,9}
1023: 1111111111 ~ {1,2,3,4,5,6,7,8,9,10}
2047: 11111111111 ~ {1,2,3,4,5,6,7,8,9,10,11}
6143: 1011111111111 ~ {1,2,3,4,5,6,7,8,9,10,11,13}
8191: 1111111111111 ~ {1,2,3,4,5,6,7,8,9,10,11,12,13}
16383: 11111111111111 ~ {1,2,3,4,5,6,7,8,9,10,11,12,13,14}
32767: 111111111111111 ~ {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15}
65535: 1111111111111111 ~ {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16}
131071: 11111111111111111 ~ {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17}