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A099882
Number of triples of n-node simple graphs that are isospectral (excluding quadruples, etc.).
2
0, 0, 0, 0, 0, 0, 2, 52, 2015
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OFFSET
1,7
LINKS
Table of n, a(n) for n=1..9.
Eric Weisstein's World of Mathematics,
Isospectral Graphs
CROSSREFS
Cf.
A099881
,
A006608
.
Sequence in context:
A297756
A174779
A215744
*
A216611
A246485
A340837
Adjacent sequences:
A099879
A099880
A099881
*
A099883
A099884
A099885
KEYWORD
nonn
,
more
AUTHOR
Eric W. Weisstein
, Oct 28 2004
STATUS
approved
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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)