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A288555 Number of one-sided arrangements of n circles in the affine plane. 0
1, 1, 3, 14, 200 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

These counts are not reduced for mirror symmetry.

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

LINKS

Table of n, a(n) for n=0..4.

CROSSREFS

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

Sequence in context: A132490 A058388 A327230 * A288563 A081383 A001320

Adjacent sequences:  A288552 A288553 A288554 * A288556 A288557 A288558

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 January 17 09:52 EST 2020. Contains 330949 sequences. (Running on oeis4.)