id:A124120 - OEIS Search Results

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Number of nonisomorphic Steiner quadruple systems (SQS's) S(3,4,n) on n points.

+0
3

0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 4, 0, 1054163 (list; graph; listen)

	OFFSET	`1,14`
	LINKS	`Index entries for sequences related to Steiner systems`
	EXAMPLE	`There are 4 nonisomorphic SQS's on 14 points.`
	CROSSREFS	`A051390 is the official version of this sequence and has all the references etc.` `Cf. A124119, A030129, A001201, A030128, A051390.` `Sequence in context: A013463 A013464 A051390 this_sequence A093318 A127560 A098172` `Adjacent sequences: A124117 A124118 A124119 this_sequence A124121 A124122 A124123`
	KEYWORD	`nonn,hard`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Nov 30 2006`

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Last modified December 10 12:37 EST 2009. Contains 170569 sequences.