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A191949
Number of simple acyclic Mobius chirotopes on n marked double pseudolines.
0
1, 1, 1, 118, 541820
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OFFSET
0,4
LINKS
Table of n, a(n) for n=0..4.
J. Ferté, V. Pilaud and M. Pocchiola,
On the number of simple arrangements of five double pseudolines
, arXiv:1009.1575 [cs.CG], 2010; Discrete Comput. Geom. 45 (2011), 279-302.
CROSSREFS
Sequence in context:
A007965
A140893
A143776
*
A013683
A071843
A234691
Adjacent sequences:
A191946
A191947
A191948
*
A191950
A191951
A191952
KEYWORD
nonn
,
more
AUTHOR
N. J. A. Sloane
, Jun 20 2011
STATUS
approved
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Last modified April 23 18:16 EDT 2024. Contains 371916 sequences. (Running on oeis4.)