A004043 The coding-theoretic function A(n,8,8).

1, 1, 1, 1, 3, 3, 7, 15, 30, 34

Offset: 8

Author

N. J. A. Sloane

Keywords

• nonn
• hard
• more

Comments

According to Brouwer's web site, 46 <= a(18) <= 49, and a(19..24) = (78, 130, 210, 330, 506, 759). This matches A030069. - M. F. Hasler, May 25 2017

References

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

Links

• A. E. Brouwer, Bounds for binary constant weight codes
• 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.
• Index entries for sequences related to A(n,d,w)

Crossrefs

Cf. A005851: A(n,8,5), A005852: A(n,8,6), A005853: A(n,8,7).

Cf. A005866: A(n,8); A030069 (size of d=8, w=8 lexicographic codes).