Search: id:A137975
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%I A137975
%S A137975 1,2,8,32,167,928,5924,40211,293370,2255406,18201706,153141115,
%T A137975 1339341815,12124729941,113363309476,1092332531380
%N A137975 Row sums of A139621, number of connected directed multigraphs with loops 
               and no vertex of degree 0, with n arcs.
%C A137975 Inverse Euler transform of A052171.
%Y A137975 Cf. A052171, A139627.
%Y A137975 Sequence in context: A030905 A030872 A030835 this_sequence A051636 A081561 
               A009753
%Y A137975 Adjacent sequences: A137972 A137973 A137974 this_sequence A137976 A137977 
               A137978
%K A137975 more,nonn
%O A137975 0,2
%A A137975 Benoit Jubin (benoit_jubin(AT)yahoo.fr), May 01 2008, May 10 2008

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