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A308349 Number of minimal unit-distance forbidden graph minors on n vertices. 1
0, 0, 0, 1, 1, 1, 3, 13, 55 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,7

REFERENCES

K. B. Chilakamarri and C. R. Mahoney, Maximal and minimal forbidden unit-distance graphs in the plane, Bulletin of the ICA, 13 (1995), 35-43.

LINKS

Table of n, a(n) for n=1..9.

Aidan Globus and Hans Parshall, Small unit-distance graphs in the plane, arXiv:1905.07829 [math.CO], 2019.

Eric Weisstein's World of Mathematics, Unit-Distance Graph

CROSSREFS

Cf. A059103 (simple connected unit-distance graphs).

Sequence in context: A037779 A323264 A305655 * A140320 A037583 A302757

Adjacent sequences:  A308346 A308347 A308348 * A308350 A308351 A308352

KEYWORD

nonn,hard,more

AUTHOR

Eric W. Weisstein, May 21 2019

STATUS

approved

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Last modified November 30 20:17 EST 2021. Contains 349425 sequences. (Running on oeis4.)