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A288559 Number of arrangements of n pseudo-circles in the affine plane. 4
1, 1, 3, 14, 173, 16977 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

These counts have been reduced for mirror symmetry.

See A250001, the main entry for this problem, for further information.

LINKS

Table of n, a(n) for n=0..5.

CROSSREFS

Cf. A250001, A275923, A275924, A288554-A288568.

Sequence in context: A260995 A220438 A250001 * A132490 A058388 A327230

Adjacent sequences:  A288556 A288557 A288558 * A288560 A288561 A288562

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 December 12 20:12 EST 2019. Contains 329961 sequences. (Running on oeis4.)