A054937 - OEIS

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A054937

Number of chiral planar maps on n nodes up to orientation-preserving isomorphisms.

0, 0, 0, 5, 64, 655, 5858, 51369, 448982, 3967466 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,4`
	LINKS	`V. A. Liskovets, Some easily derivable sequences, J. Integer Sequences, 3 (2000), #00.2.2.`
	FORMULA	`a(n) = A006385(n)-A054936(n). - R. J. Mathar, Oct 01 2011`
	CROSSREFS	`Sequence in context: A193184 A180787 A178295 * A193222 A073179 A192558` `Adjacent sequences: A054934 A054935 A054936 * A054938 A054939 A054940`
	KEYWORD	`nonn,easy,more`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), May 24 2000`

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Last modified February 15 20:26 EST 2012. Contains 205852 sequences.