

A011977


Covering numbers C(n,5,2).


3



1, 3, 3, 4, 5, 6, 7, 9, 10, 12, 13, 15, 16, 18, 19, 21, 21, 27, 28, 30, 30, 37, 38, 40
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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



CROSSREFS



KEYWORD

nonn,hard


AUTHOR



EXTENSIONS



STATUS

approved



