n^2 = SumOfSquares for n=power of 2

Meeussen Wouter (bkarnd) wouter.meeussen at vandemoortele.com
Tue Nov 20 11:26:17 CET 2001

thanx, exactly the snag I hoped for!
simple in hindsight only


-----Original Message-----
From: Bill Dubuque [mailto:wgd at zurich.ai.mit.edu]
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> Why is 4^k a sum of 2 or 3 squares only trivially: 4^k = (2^k)^2 + 0^2...
Because it requires at least 4 odd squares to sum to an even square, i.e.

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