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A288554
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Number of arrangements of n circles in the affine plane with the property that every circle intersects all the other circles.
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23
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OFFSET
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0,4
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COMMENTS
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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..5.
Jon Wild, Figure showing relationship between A250001, A275923, A275924, and A288554 for n=3 circles
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CROSSREFS
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Cf. A250001, A275923, A275924, A288554-A288568.
Sequence in context: A102894 A132552 A189273 * A288562 A222899 A119729
Adjacent sequences: A288551 A288552 A288553 * A288555 A288556 A288557
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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 12 2017, based on information supplied by Jon Wild on Aug 31 2016.
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STATUS
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approved
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