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A010558 Maximal size of binary code of length n correcting 2 unidirectional errors. +0
1
1, 1, 1, 2, 2, 2, 4, 6, 10 (list; graph; listen)
OFFSET

1,4

REFERENCES

J. H. Weber, Bounds and Constructions for Binary Block Codes Correcting Asymmetric or Unidirectional Errors, Ph. D. Thesis, Tech. Univ. Delft, 1989.

J. H. Weber, C. de Vroedt and D. E. Boekee, Bounds and constructions for binary codes of length less than 24 and asymmetric distance less than 6, IEEE Trans. Inform. Theory, 34 (1988), 1321-1332.

CROSSREFS

Sequence in context: A093393 A090858 A036654 this_sequence A060827 A064355 A000799

Adjacent sequences: A010555 A010556 A010557 this_sequence A010559 A010560 A010561

KEYWORD

nonn

AUTHOR

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

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


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