id:A011992 - OEIS Search Results

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(n,3,2) difference families over Z_n.

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2, 0, 0, 0, 0, 4, 9, 0, 9, 71, 0, 0, 201, 0, 175, 0, 0, 2939, 19543, 0, 10841, 609483 (list; graph; listen)

	OFFSET	`7,1`
	REFERENCES	`CRC Handbook of Combinatorial Designs, 1996, p. 285.`
	CROSSREFS	`Sequence in context: A028597 A028617 A006792 this_sequence A107503 A135468 A003196` `Adjacent sequences: A011989 A011990 A011991 this_sequence A011993 A011994 A011995`
	KEYWORD	`nonn,hard`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified December 4 23:11 EST 2009. Contains 170347 sequences.