A191943 - OEIS

A191943

Number of simple chirotopes on n marked double pseudolines.

1, 1, 1, 214, 2415112 (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: A268547 A202319 A181008 * A046011 A038853 A038860` `Adjacent sequences: A191940 A191941 A191942 * A191944 A191945 A191946`
	KEYWORD	`nonn,more`
	AUTHOR	`N. J. A. Sloane, Jun 20 2011`
	STATUS	`approved`

Last modified March 26 23:26 EDT 2023. Contains 361553 sequences. (Running on oeis4.)