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A037233
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Order of (4,n) cage, i.e., minimal order of 4-regular graph of girth n.
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11
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OFFSET
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3,1
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COMMENTS
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a(9) <= 275, a(10) <= 384, a(12) = 728. - From Royle's page via Jason Kimberley, Dec 26 2012
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LINKS
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Andries E. Brouwer, Cages
Eric Weisstein's World of Mathematics, Cage Graph (claims too much)
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FORMULA
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CROSSREFS
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Orders of cages: A054760 (n,k), A000066 (3,n), this sequence (4,n), A218553 (5,n), A218554 (6,n), A218555 (7,n), A191595 (n,5).
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KEYWORD
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hard,nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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