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I want to implement the following formula http://www.math.hmc.edu/funfacts/ffiles/20010.5.shtml into a computer program but my math skills are a bit weak and the square brakets and for confuse me. Could someone please explain how this formula would be used where n is 5 or something?

Thanks

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 This question is off-topic for MO; see the FAQ. It would be more appropriate on math.stackexchange.com. – Qiaochu Yuan May 6 2011 at 1:41
Sniff sniff :( ... – unknown (yahoo) May 6 2011 at 1:52

closed as off topic by Qiaochu Yuan, Cam McLeman, Andres Caicedo, Mariano Suárez-Alvarez, Pete L. Clark May 6 2011 at 2:14

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