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A243326
Number of simple connected graphs with n nodes that are triangle-free and not integral.
0
0, 0, 1, 2, 5, 16, 58, 264, 1380, 9818
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OFFSET
1,4
LINKS
Table of n, a(n) for n=1..10.
Travis Hoppe and Anna Petrone,
Encyclopedia of Finite Graphs
T. Hoppe and A. Petrone,
Integer sequence discovery from small graphs
, arXiv preprint arXiv:1408.3644 [math.CO], 2014.
CROSSREFS
Cf.
A241842
(non-integral graphs),
A024607
(triangle-free graphs).
Sequence in context:
A328296
A300042
A019448
*
A185143
A280760
A350717
Adjacent sequences:
A243323
A243324
A243325
*
A243327
A243328
A243329
KEYWORD
nonn
,
more
AUTHOR
Travis Hoppe
and
Anna Petrone
, Jun 03 2014
STATUS
approved
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Last modified May 9 19:33 EDT 2024. Contains 372354 sequences. (Running on oeis4.)