%I A072099
%S A072099 1,2,3,5,6,7,8,10,11,12,13,14,15,16,17,18,19,21,22,23,24,25,26,27,28,
%T A072099 29,31,32,33,34,35,36,37,38,39,40,41,43,44,45,46,47,48,49,50,51,52,53,
%U A072099 54,55,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77
%N A072099 First term = 1 and after, if n appears, n*(rank of n) does not.
%C A072099 Does lim n ->infinity (a(n)-n)/sqrt(n) = 1 ?
%e A072099 Second term is 2 (of rank 2) and 2*2 = 4 is not in the sequence. 4-th 
               term is 5 and 4*5 = 20 is not in the sequence.
%Y A072099 Sequence in context: A039122 A031975 A028729 this_sequence A046841 A164514 
               A000037
%Y A072099 Adjacent sequences: A072096 A072097 A072098 this_sequence A072100 A072101 
               A072102
%K A072099 easy,nonn
%O A072099 1,2
%A A072099 Benoit Cloitre (benoit7848c(AT)orange.fr), Jun 18 2002