A091849 Maximal size of (n,4,2) optical orthogonal code.

1, 1, 1, 3, 3, 3, 4, 6, 7, 8, 9, 11, 12, 14, 15, 17, 18

Offset

7,4

Comments

Conjectured to agree with A091848 except for n = 9 and 13.

Links

Table of n, a(n) for n=7..23.

W. Chu and C. J. Colbourn, Optimal (n,4,2)-OCC of small orders, Discrete Math., 279 (2004), 163-172.

Crossrefs

Cf. A091848.

Sequence in context: A167025 A238505 A259897 * A035567 A219328 A108688

Adjacent sequences: A091846 A091847 A091848 * A091850 A091851 A091852

Keyword

nonn,more

Author

N. J. A. Sloane, Mar 13 2004

Status

approved