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A052453
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Number of nonisomorphic (3,n) cage graphs.
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9
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OFFSET
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3,7
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LINKS
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Table of n, a(n) for n=3..12.
Andries E. Brouwer, Cages
Geoff Exoo, Regular graphs of given degree and girth
G. Exoo and R. Jajcay, Dynamic cage survey, Electr. J. Combin. (2008, 2011).
Gordon Royle, Cages of higher valency
Eric Weisstein's World of Mathematics, Cage Graph (claims too much)
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EXAMPLE
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a(12) = 1 from the unique generalized hexagon of order 2.
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CROSSREFS
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Cf. A000066 (size of these graphs).
Sequence in context: A040321 A040322 A040323 * A040315 A040316 A135216
Adjacent sequences: A052450 A052451 A052452 * A052454 A052455 A052456
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KEYWORD
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nonn,more,hard
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AUTHOR
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Eric W. Weisstein
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EXTENSIONS
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a(11) from B. D. McKay and W. Myrvold.
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STATUS
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approved
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