[Graphs with n edges]

Christian G. Bower bowerc at usa.net
Thu Oct 10 18:52:58 CEST 2002

Brendan McKay <bdm at cs.anu.edu.au> wrote:
> Harary and Read once discussed this issue in a paper called
> "Is the null-graph a pointless concept?".

I remember my combinatorics teacher mentioning that article (but not of
its contents.) I think he was of the opinion that there is a null graph,
but I won't bet any money on that.

Anyway, based on that, perhaps the title of both sequences should begin
"non-null". That should be correct with either interpretation.

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