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Path: utzoo!watmath!watdaisy!jmrobson
From: jmrobson@watdaisy.UUCP (Mike Robson)
Newsgroups: net.math,net.puzzle,net.games
Subject: Re: Math Puzzle
Message-ID: <6628@watdaisy.UUCP>
Date: Wed, 4-Jul-84 14:57:58 EDT
Article-I.D.: watdaisy.6628
Posted: Wed Jul  4 14:57:58 1984
Date-Received: Thu, 5-Jul-84 00:27:35 EDT
References: <2841@ecsvax.UUCP>
Organization: U of Waterloo, Ontario
Lines: 6

It looks to me as if the bit in position i in these strings is the bit
required to be added to the binary representation of i-1 to give it
odd parity.  An interesting point is that the whole process could have
been started from the string 10 instead of 1001.
				Mike Robson, University of Waterloo (etc.)