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A144557
Number of Motzkin-Rabin geometries on n points.
0
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 2, 6, 18, 82, 1000
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OFFSET
1,14
LINKS
Table of n, a(n) for n=1..18.
L. M. Pretorius and K. J. Swanepoel,
The Sylvester-Gallai theorem, colourings and algebra
, Discr. Math., 309 (2009), 385-399.
CROSSREFS
Sequence in context:
A007869
A263915
A360516
*
A327729
A273001
A118455
Adjacent sequences:
A144554
A144555
A144556
*
A144558
A144559
A144560
KEYWORD
nonn
,
more
AUTHOR
N. J. A. Sloane
, Jan 01 2009
STATUS
approved
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Last modified March 28 05:39 EDT 2024. Contains 371235 sequences. (Running on oeis4.)