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<DIV><FONT size=1>Cher N.J.A. Sloane</FONT></DIV>
<DIV>je vient de découvrir une relation tres interessante</DIV>
<DIV> </DIV>
<DIV>indice
ratio</DIV>
<DIV>1
574
37</DIV>
<DIV>2 1185</DIV>
<DIV>3
1240 37</DIV>
<DIV>4 1269</DIV>
<DIV>5 1376</DIV>
<DIV>6
1906 37</DIV>
<DIV>7 1910</DIV>
<DIV>8
2572 37</DIV>
<DIV>9 2689</DIV>
<DIV>10 2980</DIV>
<DIV>11
3238 37</DIV>
<DIV> </DIV>
<DIV>quand ratio = 37 on'a la suite 1,3,6,8,11,14,16,19 qui 'est tout simplement
A026352</DIV>
<DIV> </DIV>
<DIV>cordialement</DIV>
<DIV> </DIV>
<DIV>Mohammed Bouayoun</DIV>
<DIV><BR><BR>>>> "N. J. A. Sloane" <njas@research.att.com> 02/05
4:09 >>><BR>i believe (and have suggested to the list)<BR>that
Kummer's Congruence explains the answer<BR><BR>the simplest way to see the
question<BR>is to look at sequences A090496 A090495 which are<BR>based on the
surprising fact that A001067 and A046968<BR>agree for the first 574 or so terms
but then differ<BR><BR>it is also clear i think that the terms of A090496<BR>are
products of irregular primes, although so far only single<BR>primes have shown
up<BR><BR>Neil<BR><BR>JHC wrote:<BR> What is the conjecture
being spoken of here? It sounds as though it's<BR>some kind of congruence
involving Bernoulli numbers, in which case I'd <BR>like to have a shot at
it.<BR></DIV></BODY></HTML>