A010671 Maximal size of binary code of length n correcting 4 unidirectional errors.

1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 6, 8

Offset

1,6

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.

Links

Table of n, a(n) for n=1..12.

Crossrefs

Sequence in context: A157279 A214080 A278241 * A339164 A323443 A334511

Adjacent sequences: A010668 A010669 A010670 * A010672 A010673 A010674

Keyword

nonn

Author

N. J. A. Sloane.

Status

approved