8,2
CRC Handbook of Combinatorial Designs, 1996, p. 263.
Table of n, a(n) for n=8..12.
D. Gordon, La Jolla Repository of Coverings
Index entries for covering numbers
Sequence in context: A048228 A067543 A006583 * A270821 A139452 A245643
Adjacent sequences: A011986 A011987 A011988 * A011990 A011991 A011992
nonn,hard
N. J. A. Sloane.
approved