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A288563 Number of one-sided arrangements of n pseudo-circles in the affine plane. 1
1, 1, 3, 14, 200, 30630 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,3
COMMENTS
These counts have not been reduced for mirror symmetry.
See A250001, the main entry for this problem, for further information.
LINKS
CROSSREFS
Sequence in context: A362385 A327230 A288555 * A081383 A351139 A001320
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Jun 13 2017, based on information supplied by Jon Wild on Aug 31 2016.
STATUS
approved

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Last modified March 28 09:04 EDT 2024. Contains 371240 sequences. (Running on oeis4.)