OFFSET
1,2
LINKS
Eric Weisstein's World of Mathematics, Connected Graph
Eric Weisstein's World of Mathematics, Vertex-Induced Subgraph
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Eric W. Weisstein, Aug 10 2017
EXTENSIONS
a(8)-a(9) from Andrew Howroyd, Aug 15 2017
STATUS
approved