A030245 - OEIS

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A030245

Number of nonisomorphic groupoids with no symmetry.

1, 1, 6, 3237, 178932325 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,3`
	LINKS	`Index entries for sequences related to groupoids`
	CROSSREFS	`a(n) = A079171(n, A027423(n)). Cf. A001329.` `Sequence in context: A114184 A093884 A079183 * A172955 A198706 A198625` `Adjacent sequences: A030242 A030243 A030244 * A030246 A030247 A030248`
	KEYWORD	`nonn,more`
	AUTHOR	`Christian G. Bower (bowerc(AT)usa.net)`

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Last modified February 14 16:29 EST 2012. Contains 205635 sequences.