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A011984 Covering numbers C(n,6,4) (next term is <= 41). 0
5, 7, 12, 20, 32 (list; graph; refs; listen; history; internal format)
OFFSET

6,1

REFERENCES

CRC Handbook of Combinatorial Designs, 1996, p. 263.

LINKS

D. Gordon, La Jolla Repository of Coverings

Index entries for covering numbers

CROSSREFS

Sequence in context: A031144 A160243 A020686 * A195557 A063187 A205323

Adjacent sequences:  A011981 A011982 A011983 * A011985 A011986 A011987

KEYWORD

nonn,hard

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 16 23:45 EST 2012. Contains 205978 sequences.