[seqfan] Re: A003757

Richard Mathar mathar at strw.leidenuniv.nl
Tue Dec 16 21:37:49 CET 2008


rg> From rkg at cpsc.ucalgary.ca Tue Dec 16 19:57:38 2008
rg> Date: Tue, 16 Dec 2008 11:57:26 -0700 (MST)
rg> From: Richard Guy <rkg at cpsc.ucalgary.ca>
rg> To: Sequence Fans <seqfan at seqfan.eu>
rg> Subject: A003757
rg> 
rg> Help!  In A003757, can someone tell me what D_4 is?
rg> Thanks!   R.

See the bottom of the page http://www.iwriteiam.nl/Cresults.html :
The graph on 4 vertices with edges (1,2), (1,3), (2,3), (1.4).





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