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A004043 The coding-theoretic function A(n,8,8). 3
1, 1, 1, 1, 3, 3, 7, 15, 30, 34 (list; graph; refs; listen; history; text; internal format)
OFFSET

8,5

COMMENTS

According to Brouwer's web site, 46 <= a(18) <= 49, and a(19..24) = (78, 130, 210, 330, 506, 759). This matches A030069. - M. F. Hasler, May 25 2017

REFERENCES

CRC Handbook of Combinatorial Designs, 1996, p. 411.

LINKS

Table of n, a(n) for n=8..17.

A. E. Brouwer, Bounds for binary constant weight codes

A. E. Brouwer, J. B. Shearer, N. J. A. Sloane and W. D. Smith, New table of constant weight codes, IEEE Trans. Info. Theory 36 (1990), 1334-1380.

Index entries for sequences related to A(n,d,w)

CROSSREFS

Cf. A005851: A(n,8,5), A005852: A(n,8,6), A005853: A(n,8,7).

Cf. A005866: A(n,8); A030069 (size of d=8, w=8 lexicographic codes).

Sequence in context: A218288 A056420 A030069 * A104176 A032294 A146034

Adjacent sequences:  A004040 A004041 A004042 * A004044 A004045 A004046

KEYWORD

nonn,hard

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified May 18 15:59 EDT 2022. Contains 353816 sequences. (Running on oeis4.)