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A290331
Number of (undirected) paths in the n-triangular honeycomb acute knight graph.
1
0, 0, 3, 18, 87, 423, 2340, 15855, 137160, 1544121, 22771791, 443447013
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OFFSET
1,3
LINKS
Table of n, a(n) for n=1..12.
Eric Weisstein's World of Mathematics,
Graph Path
CROSSREFS
Cf.
A289901
(number of undirected cycles).
Sequence in context:
A218924
A390501
A037295
*
A124811
A006568
A181955
Adjacent sequences:
A290328
A290329
A290330
*
A290332
A290333
A290334
KEYWORD
nonn
,
more
AUTHOR
Eric W. Weisstein
, Jul 27 2017
STATUS
approved
