A011984 - OEIS

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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

Table of n, a(n) for n=6..10.

D. Gordon, La Jolla Repository of Coverings

Index entries for covering numbers

CROSSREFS

Sequence in context: A373669 A247027 A020686 * A280291 A195557 A063187

Adjacent sequences: A011981 A011982 A011983 * A011985 A011986 A011987

KEYWORD

nonn,more,hard

AUTHOR

N. J. A. Sloane.

STATUS

approved