Search: id:A003416
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%I A003416
%S A003416 12496,14316,1264460,2115324,2784580,4938136,7169104,18048976,
%T A003416 18656380,28158165,46722700,81128632,174277820,209524210,330003580,
%U A003416 498215416,805984760,1095447416,1236402232,1276254780,1799281330
%N A003416 Sociable numbers: smallest member of each cycle.
%C A003416 Numbers belonging to aliquot cycles of length greater than 2.
%D A003416 R. K. Guy, Unsolved Problems Number Theory, B7.
%D A003416 P. Poulet, Parfaits, amiables et extensions, Editions Stevens, Bruxelles, 
               1918.
%D A003416 D. Wells, The Penguin Dictionary of Curious and Interesting Numbers, 
               pp. 174 Penguin Books 1987.
%H A003416 INRIA Algorithms Project, <a href="http://algo.inria.fr/bin/encyclopedia?Search=ECSnb&argsearch=112">
               Encyclopedia of Combinatorial Structures 112</a>
%H A003416 D. Moews, <a href="http://djm.cc/amicable.html">Perfect, amicable and 
               sociable numbers</a>
%H A003416 D. Moews, <a href="http://djm.cc/sociable.txt">Sociable numbers</a>
%H A003416 J. O. M. Pedersen, <a href="http://amicable.homepage.dk/tables.htm">Tables 
               of Aliquot Cycles</a>
%H A003416 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               SociableNumbers.html">Link to a section of The World of Mathematics.</
               a>
%Y A003416 Cf. A072890, A072891.
%Y A003416 Sequence in context: A033669 A122726 A072891 this_sequence A045217 A078957 
               A119076
%Y A003416 Adjacent sequences: A003413 A003414 A003415 this_sequence A003417 A003418 
               A003419
%K A003416 nonn,nice
%O A003416 1,1
%A A003416 N. J. A. Sloane (njas(AT)research.att.com).
%E A003416 Incorrect g.f. deleted by N. J. A. Sloane (njas(AT)research.att.com), 
               Sep 20 2008

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