id:A060652 - OEIS Search Results

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Orders of non-Abelian groups.

+0
4

6, 8, 10, 12, 14, 16, 18, 20, 21, 22, 24, 26, 27, 28, 30, 32, 34, 36, 38, 39, 40, 42, 44, 46, 48, 50, 52, 54, 55, 56, 57, 58, 60, 62, 63, 64, 66, 68, 70, 72, 74, 75, 76, 78, 80, 81, 82, 84, 86, 88, 90, 92, 93, 94, 96, 98, 100, 102, 104, 105, 106, 108, 110, 111, 112, 114, 116 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Because of the existence of a non-Abelian dihedral group of order 2n for each n>2 all the even numbers >= 6 are in this sequence.` `What exactly are these numbers? - N. J. A. Sloane (njas(AT)research.att.com), Oct 09 2006`
	LINKS	`T. D. Noe, Table of n, a(n) for n=1..1000`
	FORMULA	`Let the prime factorization of n be p1^e1...pr^e^r. Then n is in this sequence if ei>2 for some i or pi^k = 1 (mod pj) for some i and j and 1 <= k <= ei. - T. D. Noe (noe(AT)sspectra.com), Mar 25 2007`
	CROSSREFS	`Complement of A051532.` `Sequence in context: A064176 A000379 A065985 this_sequence A020739 A064466 A026286` `Adjacent sequences: A060649 A060650 A060651 this_sequence A060653 A060654 A060655`
	KEYWORD	`nonn`
	AUTHOR	`Ahmed Fares (ahmedfares(AT)my-deja.com), Apr 17 2001`
	EXTENSIONS	`More terms from T. D. Noe (noe(AT)sspectra.com), Mar 11 2007`

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Last modified December 10 00:48 EST 2009. Contains 170565 sequences.

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