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A345218
Number of labeled triangle-free connected simple graphs on n vertices.
3
1, 1, 3, 19, 207, 3571, 93243, 3603139, 203658087, 16725737971, 1985745828483, 339119822487139, 82867477502576847, 28816562818537878931, 14182270437347915240523, 9825699599254424454332419
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,3
COMMENTS
LOG transform of A213434.
Labeled version of A024607.
LINKS
Table of n, a(n) for n=1..16.
CROSSREFS
Cf. A024607, A213434.
Sequence in context: A180563 A294330 A079144 * A049056 A204262 A165356
Adjacent sequences: A345215 A345216 A345217 * A345219 A345220 A345221
KEYWORD
nonn,hard
AUTHOR
Brendan McKay, Jun 11 2021
STATUS
approved

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Last modified November 28 17:26 EST 2024. Contains 378205 sequences.
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