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MathGroup Archive 2006

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Re: Can we prove that it is never a square?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg68563] Re: Can we prove that it is never a square?
  • From: Kent Holing <KHO at statoil.com>
  • Date: Wed, 9 Aug 2006 23:57:00 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

Actually this turned out to be quite easy by hand:
The expression lies between Q^2 and (Q+1)^2 for n > 17 where Q = n^6 - 5n^4 + 7 n^2 + 65 (thanks to Dave Rusin for pointing this out).
Kent Holing


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