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A191948 Number of acyclically oriented Mobius arrangements of pseudolines of order n. 0
1, 1, 1, 92, 488303 (list; graph; refs; listen; history; text; internal format)
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: A252593 A146515 A252631 * A278860 A283897 A097568

Adjacent sequences:  A191945 A191946 A191947 * A191949 A191950 A191951

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Jun 20 2011

STATUS

approved

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Last modified July 1 22:23 EDT 2022. Contains 354984 sequences. (Running on oeis4.)