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URL: https://oeis.org/A218537

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A218537
Minimum number of unit length rods needed to construct a rigid regular n-gon.
0
3, 19, 31, 11, 35, 31, 51, 55, 155, 49
OFFSET
3,1
COMMENTS
The terms in this sequence are the best known solutions and they may not be optimal.
LINKS
Ed Pegg, Is this braced heptagon a rigid graph?, Mathematics Stack Exchange, December 2020.
Kaylee Weatherspoon, Structure of Extremal Unit Distance Graphs, Senior Thesis, Honors College, Univ. S. Carolina - Columbia (2023). See p. 28.
CROSSREFS
Sequence in context: A250027 A339545 A102978 * A236969 A222590 A107165
KEYWORD
hard,more,nonn
AUTHOR
EXTENSIONS
a(7) updated according to Jeremy Tan's answer to Ed Pegg's question by Andrey Zabolotskiy, Dec 21 2020
Name clarified by Pontus von Brömssen, May 07 2023
STATUS
approved