OFFSET
5,2
COMMENTS
It is known that 42 <= a(29) <= 43. The next few values are known: a(30) = 48, a(31) = 50, a(32) = 52. - Nathaniel Johnston, Jan 10 2024
REFERENCES
CRC Handbook of Combinatorial Designs, 1996, p. 262.
LINKS
D. Gordon, La Jolla Repository of Coverings
Uenal Mutlu (uenalm(AT)metronet.de), Tables of coverings
CROSSREFS
KEYWORD
nonn,hard
AUTHOR
EXTENSIONS
a(28) from Nathaniel Johnston, Jan 10 2024
STATUS
approved