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<DIV><FONT face=Arial size=2>Thanks!</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>So would a comment at A007666 that "a(6) has no
solution less than 700000" be appropriate?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Or maybe "a(6) is either 0 (no solution) or greater
than 700000"? Or would some other wording be better?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Thanks again,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>-- Jon</FONT></DIV>
<BLOCKQUOTE dir=ltr
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=robert.gerbicz@gmail.com
href="mailto:robert.gerbicz@gmail.com">Robert Gerbicz</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=seqfan@ext.jussieu.fr
href="mailto:seqfan@ext.jussieu.fr">Sequence Fans</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Sunday, June 10, 2007 3:00 AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [Norton AntiSpam] </DIV>
<DIV><BR></DIV>See <A onclick="return top.js.OpenExtLink(window,event,this)"
href="http://euler.free.fr/" target=_blank>http://euler.free.fr/</A><BR>As you
can see on their Resta page they've checked all numbers up to 700,000. ( using
many modular tricks to speed up the search.)<BR>This is a really hard problem,
both in running time and memory. But there are known solutions for n=7 and
n=8, I don't know if these are the smallest or not:
<BR>568^7=525^7+439^7+430^7+413^7+266^7+258^7+127^7 found by Mark
Dodrill in 03/20/1999 <BR>
<DIV id=mb_1>1409^8=1324^8+1190^8+1088^8+748^8+524^8+478^8+223^8+90^8
found by Scott I. Chase about in 2000.</DIV></BLOCKQUOTE></BODY></HTML>