Search: id:A054913
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%I A054913
%S A054913 1,0,0,12,432,20640,1635360,234661728,63873105408,33808605100800,
%T A054913 35254518078942720,72922216118695037952,300312950395670884227072,
%U A054913 2467417543490126920783534080,40490542668157619621325008117760
%N A054913 Number of labeled connected graphs with n nodes such that complement 
               is also connected.
%H A054913 V. A. Liskovets, <a href="http://www.cs.uwaterloo.ca/journals/JIS/index.html">
               Some easily derivable sequences</a>, J. Integer Sequences, 3 (2000), 
               #00.2.2.
%F A054913 2*A001187(n)-A006125(n).
%Y A054913 Sequence in context: A123778 A129006 A067429 this_sequence A070285 A041617 
               A159534
%Y A054913 Adjacent sequences: A054910 A054911 A054912 this_sequence A054914 A054915 
               A054916
%K A054913 nonn,easy
%O A054913 1,4
%A A054913 N. J. A. Sloane (njas(AT)research.att.com), May 23 2000
%E A054913 More terms from Vladeta Jovovic (vladeta(AT)eunet.rs), Jul 19 2000

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