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A005857 The coding-theoretic function A(n,12,7).
(Formerly M0216)
0
1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 5, 5, 6, 8 (list; graph; refs; listen; history; text; internal format)
OFFSET

7,7

REFERENCES

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.

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

LINKS

Table of n, a(n) for n=7..28.

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

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

CROSSREFS

Sequence in context: A111890 A104277 A125893 * A025809 A204591 A279220

Adjacent sequences:  A005854 A005855 A005856 * A005858 A005859 A005860

KEYWORD

nonn,hard

AUTHOR

N. J. A. Sloane.

EXTENSIONS

The version in the Encyclopedia of Integer Sequences had 1 instead of 2 at n=13.

STATUS

approved

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Last modified May 13 13:53 EDT 2021. Contains 343858 sequences. (Running on oeis4.)