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A234628
Numbers of undirected cycles in the graph join C_n + C_n of cycle graphs.
0
11, 197, 2766, 60142, 1921115, 84779781, 4939361970, 367260392738, 33943163219867
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OFFSET
2,1
LINKS
Table of n, a(n) for n=2..10.
Eric Weisstein's World of Mathematics,
Graph Cycle
Eric Weisstein's World of Mathematics,
Graph Join
CROSSREFS
Sequence in context:
A218818
A243646
A186251
*
A105124
A272500
A034831
Adjacent sequences:
A234625
A234626
A234627
*
A234629
A234630
A234631
KEYWORD
nonn
,
more
AUTHOR
Eric W. Weisstein
, Dec 28 2013
EXTENSIONS
Name corrected by
Eric W. Weisstein
, Mar 09 2016
STATUS
approved
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Last modified August 17 13:27 EDT 2024. Contains 375210 sequences. (Running on oeis4.)