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A191946
Number of simple acyclically oriented Mobius arrangements of pseudolines of order n.
0
1, 1, 1, 22, 22620
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: A028692 A127486 A232847 * A221639 A078398 A280812
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Jun 20 2011
STATUS
approved