Search: id:A006651
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%I A006651 M3584
%S A006651 1,4,22,110,515,2272,9777,40752,166519,668134,2644988,10351321,40150556,
%T A006651 154591610,591780559,2254880616,8561287942,32418230925,122522492807,
%U A006651 462502319244,1744810912396,6581954720648,24839735669771
%N A006651 Number of graphs with n nodes, n+2 edges and no isolated vertices.
%D A006651 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%D A006651 W. L. Kocay, Some new methods in reconstruction theory, pp. 89 - 114 
               of Combinatorial Mathematics IX. Proc. Ninth Australian Conference 
               (Brisbane, August 1981). Ed. E. J. Billington, S. Oates-Williams 
               and A. P. Street. Lecture Notes Math., 952. Springer-Verlag, 1982.
%Y A006651 Cf. A048180.
%Y A006651 Sequence in context: A024420 A108840 A007994 this_sequence A159616 A144047 
               A077543
%Y A006651 Adjacent sequences: A006648 A006649 A006650 this_sequence A006652 A006653 
               A006654
%K A006651 nonn
%O A006651 4,2
%A A006651 N. J. A. Sloane (njas(AT)research.att.com).
%E A006651 More terms from Vladeta Jovovic (vladeta(AT)eunet.rs), Mar 02 2008

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