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A354465
Number of connected simple graphs for which D.x = 1 has no solutions when D is the distance matrix.
0
1, 0, 0, 0, 0, 0, 2, 14, 398, 23923
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OFFSET
1,7
LINKS
Table of n, a(n) for n=1..10.
Stefan Steinerberger,
The first eigenvector of a distance matrix is nearly constant
, arXiv:2205.15920 [math.FA], 2022.
Stefan Steinerberger,
Curvature on graphs via equilibrium measures
, arXiv:2202.01658 [math.CO], 2022; J. Graph Theory (2023), 1-22.
Eric Weisstein's World of Mathematics,
Distance Matrix
CROSSREFS
Sequence in context:
A228852
A242876
A102596
*
A050561
A346082
A135865
Adjacent sequences:
A354462
A354463
A354464
*
A354466
A354467
A354468
KEYWORD
nonn
,
more
AUTHOR
Eric W. Weisstein
, Jun 01 2022
STATUS
approved
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Last modified May 28 15:56 EDT 2024. Contains 372916 sequences. (Running on oeis4.)