A011982 - OEIS

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A011982

Covering numbers C(n,7,3) (next term is <= 25).

0

1, 4, 4, 6, 8, 11, 13, 14, 15

(list; graph; refs; listen; history; text; internal format)

OFFSET

7,2

REFERENCES

CRC Handbook of Combinatorial Designs, 1996, p. 262.

LINKS

Table of n, a(n) for n=7..15.

D. Gordon,La Jolla Repository of Coverings

Index entries for covering numbers

CROSSREFS

Sequence in context:A105790 A338895 A090682*A282939 A175216 A053639

Adjacent sequences:A011979 A011980 A011981*A011983 A011984 A011985

KEYWORD

nonn,hard

AUTHOR

N. J. A. Sloane.

STATUS

approved