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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; text; internal format)
OFFSET
6,1
REFERENCES
CRC Handbook of Combinatorial Designs, 1996, p. 263.
LINKS
CROSSREFS
Sequence in context: A160243 A247027 A020686 * A280291 A195557 A063187
KEYWORD
nonn,more,hard
AUTHOR
STATUS
approved

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Last modified March 18 22:56 EDT 2024. Contains 370952 sequences. (Running on oeis4.)