Search: id:A063977
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%I A063977
%S A063977 1,3,4,5,6,8,9,10,12,14,17,18,20,24,26,28,30,32,33,36,38,40,42,44,48,
%T A063977 50,54,56,60,62,65,68,70,72,74,78,80,82,84,90,96,98,100,102,104,108,
%U A063977 110,112,114,120,122,126,128,129,130,132,136,138,140,144,150,152,158
%N A063977 Numbers which are sums of unitary divisors, the usigma values: their 
               inverse usigma set is not empty; usigma[]=A034448().
%Y A063977 A034448.
%Y A063977 Sequence in context: A039095 A001957 A100966 this_sequence A047428 A039066 
               A026363
%Y A063977 Adjacent sequences: A063974 A063975 A063976 this_sequence A063978 A063979 
               A063980
%K A063977 nonn
%O A063977 1,2
%A A063977 Labos E. (labos(AT)ana.sote.hu), Sep 05 2001

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