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A018202
Possible numbers of complements of topologies on 11 points.
0
1, 10, 81, 512, 1023, 2048
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OFFSET
0,2
LINKS
Table of n, a(n) for n=0..5.
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:
A010569
A136870
A293367
*
A154236
A095004
A037541
Adjacent sequences:
A018199
A018200
A018201
*
A018203
A018204
A018205
KEYWORD
nonn
,
more
AUTHOR
N. J. A. Sloane
STATUS
approved
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Last modified August 19 15:21 EDT 2024. Contains 375303 sequences. (Running on oeis4.)