Search: id:A105427
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%I A105427
%S A105427 2,3,4,5,6,7,8,9,10,11,12,13,14,16,17,18,19,20,21,22,23,24,25,26,27,28,
%T A105427 29,30,31,32,33,34,35,36,37,38,39,40,42,43,44,45,46,47,48,49,50,51,52,
%U A105427 53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75
%N A105427 Numbers n such that the near-repdigit number consisting of a 1 followed 
               by n 3's (i.e. of form 1333...33) is composite.
%C A105427 Complement of A056698.
%H A105427 M. Kamada, <a href="http://homepage2.nifty.com/m_kamada/math/13333.htm">
               Factorizations of 133...33</a>
%Y A105427 Cf. A093671; A051200; A089017.
%Y A105427 Sequence in context: A043320 A044917 A161953 this_sequence A023808 A023756 
               A080944
%Y A105427 Adjacent sequences: A105424 A105425 A105426 this_sequence A105428 A105429 
               A105430
%K A105427 nonn
%O A105427 1,1
%A A105427 Lekraj Beedassy (blekraj(AT)yahoo.com), Apr 08 2005

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