Search: id:A057717
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%I A057717
%S A057717 0,2,3,4,5,6,7,8,9,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,
%T A057717 27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,
%U A057717 49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70
%N A057717 The non-powers of 10.
%C A057717 a(n) is the length signature of a string plus its length.
%F A057717 a(n) = ceiling(log_10(a(n) + 1)) + n.
%F A057717 Find k such that 10^k - (k + 1) <= n < 10^(k+1) - (k + 2), then a(n) 
               = n + k + 1.
%Y A057717 Complement of A011557. Cf. A057716.
%Y A057717 Sequence in context: A045876 A033865 A118764 this_sequence A063742 A014089 
               A065039
%Y A057717 Adjacent sequences: A057714 A057715 A057716 this_sequence A057718 A057719 
               A057720
%K A057717 nonn
%O A057717 0,2
%A A057717 John Lindgren (john.lindgren(AT)Eng.Sun.COM), Oct 24 2000
%E A057717 Better description from Ahmed Fares (ahmedfares(AT)my-deja.com), Apr 
               29 2001

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