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A288556
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Number of connected one-sided arrangements of n circles in the affine plane, in the sense that the union of the solid circles is a connected set.
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0
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OFFSET
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0,3
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COMMENTS
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These counts are not reduced for mirror symmetry.
See A250001, the main entry for this problem, for further information.
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LINKS
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Table of n, a(n) for n=0..4.
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CROSSREFS
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Cf. A250001, A275923, A275924, A288554-A288568.
Sequence in context: A217391 A297601 A089760 * A353930 A295246 A288564
Adjacent sequences: A288553 A288554 A288555 * A288557 A288558 A288559
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KEYWORD
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nonn,more
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AUTHOR
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N. J. A. Sloane, Jun 13 2017, based on information supplied by Jon Wild.
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STATUS
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approved
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