A191946 - OEIS

A191946

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

1, 1, 1, 22, 22620 (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: A028692 A127486 A232847 * A221639 A078398 A280812` `Adjacent sequences: A191943 A191944 A191945 * A191947 A191948 A191949`
	KEYWORD	`nonn,more`
	AUTHOR	`N. J. A. Sloane, Jun 20 2011`
	STATUS	`approved`

Last modified March 23 15:53 EDT 2023. Contains 361445 sequences. (Running on oeis4.)