A342055 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 60, we have over 367,000 sequences, and we’ve crossed 11,000 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give

A342055

Number of unrooted 3-connected triangulations of a hexagon with n interior nodes.

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 * A009156 A074573 A068571` `Adjacent sequences: A342052 A342053 A342054 * A342056 A342057 A342058`
	KEYWORD	`nonn`
	AUTHOR	`Andrew Howroyd, Feb 26 2021`
	STATUS	`approved`

License Agreements, Terms of Use, Privacy Policy. .

Last modified December 2 01:36 EST 2023. Contains 367505 sequences. (Running on oeis4.)