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A005855 The coding-theoretic function A(n,10,7).
(Formerly M0232)
0
1, 1, 1, 1, 1, 2, 2, 2, 3, 4, 5, 6, 8, 10, 13, 16 (list; graph; refs; listen; history; internal format)
OFFSET

7,6

COMMENTS

The g.f. (-1-z-z**2-z**3+z**4)/(-1+z**2+z**4) conjectured by S. Plouffe in his 1992 dissertation is wrong.

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).

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

LINKS

S. Plouffe, Approximations de S\'{e}ries G\'{e}n\'{e}ratrices et Quelques Conjectures, Dissertation, Universit\'{e} du Qu\'{e}bec \`{a} Montr\'{e}al, 1992.

S. Plouffe, 1031 Generating Functions and Conjectures, Universit\'{e} du Qu\'{e}bec \`{a} Montr\'{e}al, 1992.

E. M. Rains and N. J. A. Sloane, A(n,d,w) tables

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

CROSSREFS

Sequence in context: A111212 A102240 A026837 * A096748 A022866 A099388

Adjacent sequences:  A005852 A005853 A005854 * A005856 A005857 A005858

KEYWORD

nonn,hard

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

EXTENSIONS

An incorrect g.f. was deleted by N. J. A. Sloane, Sep 13 2009

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Last modified February 16 13:02 EST 2012. Contains 205909 sequences.