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A191947
Number of Mobius arrangements of pseudolines of order n.
0
1, 1, 1, 59, 245351
OFFSET
0,4
LINKS
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: A094489 A235215 A178066 * A093403 A087535 A058931
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Jun 20 2011
STATUS
approved