%I #7 Mar 19 2018 04:08:19
%S 1,1,9,31,308,3809,63995,1152784,32319312
%N The number of strong vertex magic total labelings of the cyclic graph on 2n+1 vertices.
%C Cyclic graphs on an even number of vertices do not possess strong VMTLs.
%Y First column of triangle A177741.
%K hard,more,nonn
%O 1,3
%A _Jason Kimberley_, May 17 2010