6Foot2 Posted January 12, 2012 Posted January 12, 2012 Link: What's Special About This Number? 67 is the smallest number which is palindromic in bases 5 and 6 This list begins at 1 and 9999 [it does not include every number in that sequence] The list contains 53 numbers where there are no entries starting at 391. The site owner says: If you know a distinctive fact about a number not listed here, please e-mail me.
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