OFFSET
3,1
COMMENTS
Counts exclude the null graph.
LINKS
Eric Weisstein's World of Mathematics, Double Cone Graph
Eric Weisstein's World of Mathematics, Graph Minor
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Eric W. Weisstein, Oct 13 2023
EXTENSIONS
a(8) from Eric W. Weisstein, Oct 15 2023
a(9) from Eric W. Weisstein, Oct 21 2023
STATUS
approved