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Thanks, Giovanni Resta.</SPAN></P>
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The smallest term!!</SPAN></P>
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style="mso-spacerun: yes"> </SPAN>It is<SPAN
style="mso-spacerun: yes"> great!</SPAN></SPAN></P>
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</SPAN>.<?xml:namespace prefix = o ns =
"urn:schemas-microsoft-com:office:office" /><o:p></o:p></SPAN></P>
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style="mso-spacerun: yes"> </SPAN>Now human being became to
know much about A036471.<SPAN
style="mso-spacerun: yes">
</SPAN><o:p></o:p></SPAN></P>
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style="mso-spacerun: yes"> </SPAN>The first term is<SPAN
style="mso-spacerun: yes"> 3270960 </SPAN>and known last term is<SPAN
style="mso-spacerun: yes"> </SPAN></SPAN></P>
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style="mso-spacerun: yes"></SPAN><o:p><FONT face="MS UI Gothic"
size=2> </FONT><IMG height=75
alt="[a; b; c; d]==C_n[173.1933058921.149.103540742849; 173.1933058921.15531111427499; 336352252427.149.103540742849; 336352252427.15531111427499],"
src="http://mathworld.wolfram.com/images/equations/AmicableQuadruple/equation4.gif"
width=301></o:p></SPAN></P>
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align=left><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 'ＭＳ Ｐゴシック'; mso-bidi-font-family: 'ＭＳ Ｐゴシック'; mso-font-kerning: 0pt"><o:p><FONT
face="MS UI Gothic" size=2></FONT></o:p></SPAN> </P>
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style="FONT-SIZE: 12pt; FONT-FAMILY: 'ＭＳ Ｐゴシック'; mso-bidi-font-family: 'ＭＳ Ｐゴシック'; mso-font-kerning: 0pt"><o:p><FONT
face="MS UI Gothic" size=2> </FONT><IMG height=38
alt="C_n==2^(n-1)M_n.5^9.7^2.11^4.17^2.19.29^2.67.71^2.109.131.139.179.307.431.521.653.1019.1279.2557.3221.5113.5171.6949 "
src="http://mathworld.wolfram.com/images/equations/AmicableQuadruple/equation5.gif"
width=401></o:p></SPAN></P>
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face="MS UI Gothic" size=2> </FONT></o:p></SPAN></P>
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style="FONT-SIZE: 12pt; FONT-FAMILY: 'ＭＳ Ｐゴシック'; mso-bidi-font-family: 'ＭＳ Ｐゴシック'; mso-font-kerning: 0pt"><o:p><FONT
face="MS UI Gothic" size=2> n=32583657,
19.6million digits.</FONT></o:p></SPAN></P>
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style="FONT-SIZE: 12pt; FONT-FAMILY: 'ＭＳ Ｐゴシック'; mso-bidi-font-family: 'ＭＳ Ｐゴシック'; mso-font-kerning: 0pt"><o:p><FONT
face="MS UI Gothic" size=2> Yasutoshi</FONT></o:p></SPAN></P>
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