A234628 - OEIS

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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

(list; graph; refs; listen; history; text; internal format)

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