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A342055 Number of unrooted 3-connected triangulations of a hexagon with n interior nodes. 3
1, 3, 20, 140, 1089, 8796, 72204, 596906, 4958736, 41365110, 346477770, 2914165157, 24612003577, 208711039484, 1776879432103, 15185140895506, 130242884479498, 1120949733518971, 9679158242220797, 83836374509942511, 728279201686023394, 6344019713842496995 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
Andrew Howroyd, Table of n, a(n) for n = 1..500
CROSSREFS
Column k=6 of A342053.
Cf. A341926.
Sequence in context: A073514 A163065 A082143 * A371411 A009156 A074573
Adjacent sequences: A342052 A342053 A342054 * A342056 A342057 A342058
KEYWORD
nonn
AUTHOR
Andrew Howroyd, Feb 26 2021
STATUS
approved

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Last modified June 5 01:34 EDT 2024. Contains 373102 sequences. (Running on oeis4.)