Search: id:A057640
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%I A057640
%S A057640 1,3,5,7,10,12,15,17,20,23,25,28,31,33,36,39,41,44,47,50,53,56,
%T A057640 58,61,64,67,70,73,76,79,82,85,88,91,94,97,100,103,106,109,112,
%U A057640 115,118,121,124,127,130,133,136,139,142,145,149,152,155,158,161
%N A057640 Floor(H(n)+exp(H(n))*log(H(n))), where H(n) = Sum_{k=1..n} 1/k.
%H A057640 T. D. Noe, <a href="b057640.txt">Table of n, a(n) for n=1..1000</a>
%H A057640 J. C. Lagarias, <a href="http://arXiv.org/abs/math.NT/0008177">An elementary 
               problem equivalent to the Riemann hypothesis</a>, Am. Math. Monthly 
               109 (#6, 2002), 534-543.
%Y A057640 Cf. A057641.
%Y A057640 Sequence in context: A033035 A047390 A020959 this_sequence A037030 A075782 
               A050090
%Y A057640 Adjacent sequences: A057637 A057638 A057639 this_sequence A057641 A057642 
               A057643
%K A057640 nonn,nice,easy
%O A057640 1,2
%A A057640 N. J. A. Sloane (njas(AT)research.att.com), Oct 12 2000

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