OFFSET
3,1
COMMENTS
Sun graphs are defined for n>=3.
LINKS
Alois P. Heinz, Table of n, a(n) for n = 3..130
Eric Weisstein's World of Mathematics, Spanning Tree
Eric Weisstein's World of Mathematics, Sun Graph
CROSSREFS
KEYWORD
nonn
AUTHOR
Eric W. Weisstein, Jul 16 2011
STATUS
approved