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Search: id:A005855
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| A005855 |
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The coding-theoretic function A(n,10,7).
(Formerly M0232)
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+0
1
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| 1, 1, 1, 1, 1, 2, 2, 2, 3, 4, 5, 6, 8, 10, 13, 16
(list; graph; listen)
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OFFSET
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7,6
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COMMENT
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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.
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REFERENCES
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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.
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LINKS
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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)
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CROSSREFS
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Sequence in context: A111212 A102240 A026837 this_sequence A096748 A022866 A099388
Adjacent sequences: A005852 A005853 A005854 this_sequence A005856 A005857 A005858
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KEYWORD
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nonn,hard
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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EXTENSIONS
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An incorrect g.f. was deleted by N. J. A. Sloane, Sep 13 2009
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