login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A287511 Number of simple connected perfect non-bipartite graphs on n vertices. 0

%I #16 Aug 10 2017 09:28:13

%S 0,0,1,3,15,88,680,7623,126047,3118189,112367111,5736020864

%N Number of simple connected perfect non-bipartite graphs on n vertices.

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/BipartiteGraph.html">Bipartite Graph</a>

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/ConnectedGraph.html">Connected Graph</a>

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/PerfectGraph.html">Perfect Graph</a>

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/SimpleGraph.html">Simple Graph</a>

%F a(n) = A052433(n) - A005142(n), since all bipartite graphs are perfect. - _Falk Hüffner_, Aug 10 2017

%Y Cf. A005142, A052433.

%K nonn,more

%O 1,4

%A _Eric W. Weisstein_, May 26 2017

%E a(11)-a(12) from formula by _Falk Hüffner_, Aug 10 2017

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 19 07:35 EDT 2024. Contains 371782 sequences. (Running on oeis4.)