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A359690
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Number of vertices in a regular drawing of a complete bipartite graph where the vertex positions on each part equal the Farey series of order n.
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10
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5, 13, 69, 289, 1971, 3997, 20371, 45751, 120957, 205299, 629847, 897801, 2334409, 3461459, 5517131, 8468061
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listen;
history;
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internal format)
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OFFSET
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1,1
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COMMENTS
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The number of vertices along each edge is A005728(n). No formula for a(n) is known.
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LINKS
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FORMULA
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CROSSREFS
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Cf. A359691 (crossings), A359692 (regions), A359693 (edges), A359694 (k-gons), A005728, A331755, A359654, A358887, A358883, A006842, A006843.
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KEYWORD
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nonn,more
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AUTHOR
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STATUS
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approved
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