A089925 - OEIS

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A089925

Number of commutative loops (quasigroups with an identity element) of order n.

1, 1, 1, 2, 1, 8, 17, 2265, 30583 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,4`
	LINKS	`Index entries for sequences related to quasigroups`
	CROSSREFS	`Cf. A057771.` `Sequence in context: A121360 A199928 A047688 * A120945 A013118 A012961` `Adjacent sequences: A089922 A089923 A089924 * A089926 A089927 A089928`
	KEYWORD	`nonn`
	AUTHOR	`Christian G. Bower (bowerc(AT)usa.net) and Juergen Buntrock (jubu(AT)jubu.com), Nov 14 2003.`
	EXTENSIONS	`a(9) from Michael Thwaites (michael.thwaites(AT)ucop.edu), Jan 23 2004`

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Last modified February 14 20:38 EST 2012. Contains 205663 sequences.