id:A004044 - OEIS Search Results

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Size of minimal covering code in {Z_3}^n with covering radius 1 (the next 2 terms are in the ranges 63-73, 153-186).

+0
2

1, 3, 5, 9, 27 (list; graph; listen)

	OFFSET	`1,2`
	REFERENCES	`G. D. Cohen et al., Covering Codes, North-Holland, 1997, p. 174.` `H. Hamalainen et al., Football pools - a game for mathematicians, Amer. Math. Monthly, 102 (1995), 579-588.`
	LINKS	`Index entries for sequences related to covering codes`
	CROSSREFS	`A column of A060439.` `Sequence in context: A006722 A039774 A114001 this_sequence A082711 A013622 A027715` `Adjacent sequences: A004041 A004042 A004043 this_sequence A004045 A004046 A004047`
	KEYWORD	`nonn,hard`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified November 24 14:25 EST 2009. Contains 167438 sequences.