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A297671
Number of chordless cycles in the n-triangular grid graph.
1
0, 0, 0, 1, 7, 41, 260, 1930, 17463, 200008, 3026192, 62212319, 1742874972, 65794989216, 3314857545154, 222226981778153, 19858056830333695, 2371636836808937036, 378993965527624639893
OFFSET
0,5
LINKS
Eric Weisstein's World of Mathematics, Chordless Cycle
Eric Weisstein's World of Mathematics, Triangular Grid Graph
CROSSREFS
Sequence in context: A036730 A258941 A080047 * A356298 A125120 A353992
KEYWORD
nonn,more
AUTHOR
Eric W. Weisstein, Jan 02 2018
EXTENSIONS
a(7)-a(18) from Andrew Howroyd, Jan 08 2018
STATUS
approved