A191948 Number of acyclically oriented Mobius arrangements of pseudolines of order n.

1, 1, 1, 92, 488303

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