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Jan 24, 2022 at 13:00 history edited Glorfindel CC BY-SA 4.0
2 broken links fixed
Jan 27, 2011 at 5:10 history edited Mike Usher CC BY-SA 2.5
Added information about b+=1 case at the end.
Dec 20, 2010 at 19:32 answer added Zhiyu timeline score: 7
Dec 20, 2010 at 16:05 history asked Mike Usher CC BY-SA 2.5