id:A030510 - OEIS Search Results

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Graham-Sloane-type lower bound on the size of a ternary (n,3,10) constant-weight code.

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49, 490, 2704, 10847, 35346, 99196, 248491, 568993, 1211033, 2425515, 4614394, 8399563, 14714789, 24926034, 40986248, 65631574, 102626730, 157068288, 235755520, 347639496, 504362220, 720898682, 1016315904 (list; graph; listen)

	OFFSET	`10,1`
	LINKS	`M. Svanstrom, A lower bound for ternary constant weight codes, IEEE Trans. on Information Theory, Vol. 43, pp. 1630-1632, Sep. 1997.`
	FORMULA	`a(n) = ceil (binomial (n, w) * 2^w / (2*n + 1))`
	CROSSREFS	`Sequence in context: A063132 A012097 A061621 this_sequence A104935 A110203 A166832` `Adjacent sequences: A030507 A030508 A030509 this_sequence A030511 A030512 A030513`
	KEYWORD	`nonn`
	AUTHOR	`Mattias Svanstrom (mattias(AT)isy.liu.se)`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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