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 A037233 Order of (4,n) cage, i.e., minimal order of 4-regular graph of girth n. 11
 5, 8, 19, 26, 67, 80 (list; graph; refs; listen; history; text; internal format)
 OFFSET 3,1 COMMENTS a(9) <= 275, a(10) <= 384, a(12) = 728. - From Royle's page via Jason Kimberley, Dec 26 2012 LINKS 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) FORMULA a(n) >= A062318(n+1). - Jason Kimberley, Dec 21 2012 CROSSREFS 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). Sequence in context: A226902 A326826 A026595 * A197539 A034453 A269715 Adjacent sequences:  A037230 A037231 A037232 * A037234 A037235 A037236 KEYWORD hard,nonn AUTHOR EXTENSIONS Extended by Jason Kimberley, Apr 25 2010 STATUS approved

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Last modified December 9 17:18 EST 2019. Contains 329879 sequences. (Running on oeis4.)