OFFSET
3,1
COMMENTS
Counts exclude the null graph.
LINKS
Eric Weisstein's World of Mathematics, Graph Minor
Eric Weisstein's World of Mathematics, Prism Graph
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Eric W. Weisstein, Jun 02 2022
EXTENSIONS
a(8) from Eric W. Weisstein, Oct 30 2023
a(9) from Eric W. Weisstein, Nov 02 2023
STATUS
approved