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Subject:      Repeating Code Possibilities From:         Shlomi Fish <shlomi@medusa.cortext.co.il> Date:         1996/06/10 Message-ID:   <31BC1616.34C6@medusa.cortext.co.il> Newsgroups:   rec.puzzles [More Headers]   I've got a question in combinatorics. Let's suppose that there is a  transmitor that trasmits a code repeatedly. Once it reaches the end of  the code it immidiately starts broadcasting it again. For example, if  the code is 1101 then it will broadast:  11011101110111011101....  There is no way to determine where the code starts, therefore some codes  with the same length are equivalent. E.g., 1011 or 1110 are considered  identical to 1101.  Keeping that in mind: suppose the code can have n different symbols or  digits and is of length l, what is the number of different codes  possible?  	Shlomi Fish

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