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Search: id:A018202
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A018202 Possible numbers of complements of topologies on 11 points. +0
1
1, 10, 81, 512, 1023, 2048 (list; graph; listen)
OFFSET

0,2

REFERENCES

J. I. Brown and S. Watson, The number of complements of a topology on n points is at least 2^n (except for some special cases), Discr. Math., 154 (1996), 27-39.

CROSSREFS

Sequence in context: A138425 A010569 A136870 this_sequence A154236 A095004 A037541

Adjacent sequences: A018199 A018200 A018201 this_sequence A018203 A018204 A018205

KEYWORD

nonn

AUTHOR

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

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Last modified December 17 13:29 EST 2009. Contains 170826 sequences.


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