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A177743
The number of strong vertex magic total labelings of the cyclic graph on 2n+1 vertices.
1
1, 1, 9, 31, 308, 3809, 63995, 1152784, 32319312
OFFSET
1,3
COMMENTS
Cyclic graphs on an even number of vertices do not possess strong VMTLs.
CROSSREFS
First column of triangle A177741.
Sequence in context: A160653 A189436 A145950 * A266710 A159279 A048547
KEYWORD
hard,more,nonn
AUTHOR
Jason Kimberley, May 17 2010
STATUS
approved