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A018199 Possible numbers of complements of topologies on 8 points. 0
1, 7, 36, 64, 125, 127, 243, 256 (list; graph; refs; listen; history; internal format)
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: A028389 A041603 A176543 * A063168 A163683 A103090

Adjacent sequences:  A018196 A018197 A018198 * A018200 A018201 A018202

KEYWORD

nonn

AUTHOR

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

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Last modified February 17 19:13 EST 2012. Contains 206085 sequences.