OFFSET
7,4
COMMENTS
Conjectured to agree with A091848 except for n = 9 and 13.
LINKS
W. Chu and C. J. Colbourn, Optimal (n,4,2)-OCC of small orders, Discrete Math., 279 (2004), 163-172.
CROSSREFS
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Mar 13 2004
STATUS
approved