A122676 - OEIS

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A122676

Number of unbranched catacondensed azulenoids with n carbon atoms and C_s symmetry.

0, 0, 2, 12, 54, 256, 1141 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,3`
	REFERENCES	`J. Brunvoll, S. J. Cyvin and B. N. Cyvin, Azulenoids, MATCH, No. 34, 1996, 91-108.`
	LINKS	`Table of n, a(n) for n=1..7.`
	CROSSREFS	`Sequence in context: A145766 A181765 A198150 * A038175 A181541 A197230` `Adjacent sequences: A122673 A122674 A122675 * A122677 A122678 A122679`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane, Sep 23 2006`
	STATUS	`approved`

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Last modified May 24 18:33 EDT 2013. Contains 225630 sequences.