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Minimal number of conjugacy classes (which is also the number of irreducible representations) in G where G is a finite group of order n.

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1, 2, 3, 4, 5, 3, 7, 5, 9, 4, 11 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`a(n) <= n with equality iff n belongs to sequence A051532.`
	EXAMPLE	`a(6) = 3 because there are two groups of order 6, the cyclic group with 6 classes and S_3 with 3 classes.`
	CROSSREFS	`A051532.` `Sequence in context: A140271 A141295 A134198 this_sequence A081810 A071829 A067620` `Adjacent sequences: A060650 A060651 A060652 this_sequence A060654 A060655 A060656`
	KEYWORD	`nonn`
	AUTHOR	`Noam Katz (noamkj(AT)hotmail.com), Apr 17 2001`

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.