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A297061
Number of edge covers in the n X n triangular grid graph.
1
0, 4, 198, 84682, 281721996, 7392711987818, 1528658402287559670, 2490983667363798650708788, 31987702603596066902310936860946, 3237032742135065575663156511653859260726, 2581445727611992619431296420645395411748335733438
(list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
Table of n, a(n) for n=0..10.
Eric Weisstein's World of Mathematics, Edge Cover
Eric Weisstein's World of Mathematics, Triangular Graph
CROSSREFS
Cf. A269869.
Sequence in context: A209288 A263422 A065246 * A156235 A356214 A034862
Adjacent sequences: A297058 A297059 A297060 * A297062 A297063 A297064
KEYWORD
nonn
AUTHOR
Eric W. Weisstein, Dec 24 2017
EXTENSIONS
a(5)-a(10) from Andrew Howroyd, Dec 27 2017
STATUS
approved

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Last modified October 5 01:23 EDT 2024. Contains 376527 sequences.
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