OFFSET
1,1
COMMENTS
Every integer that occurs in this sequence occurs at least twice.
EXAMPLE
The second odd non-binary-palindrome is 13, which is 1101 in binary. The smallest positive integer that, when written in binary, contains both 1101 and its reverse (1011) is 27, which is 11011 in binary.
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Leroy Quet, Aug 28 2009
EXTENSIONS
Extended by Ray Chandler, Mar 14 2010
STATUS
approved