

A112411


a(n) = smallest positive integer, not occurring earlier in the sequence and not equal to n, that has the same number of (nonleading) 0's in its binary representation as n.


0



3, 5, 1, 9, 2, 11, 15, 17, 4, 12, 6, 10, 14, 13, 7, 33, 8, 20, 21, 18, 19, 25, 27, 35, 22, 28, 23, 26, 30, 29, 63, 65, 16, 36, 24, 34, 38, 37, 43, 48, 42, 41, 39, 49, 46, 45, 55, 40, 44, 52, 53, 50, 51, 57, 47, 71, 54, 60, 61, 58, 59, 95, 31, 129, 32, 68, 69, 66, 67, 73, 56, 80
(list;
graph;
refs;
listen;
history;
text;
internal format)




