OFFSET
1,4
LINKS
Gordon Royle, Small Graphs: Class 2 Graphs.
Eric Weisstein's World of Mathematics, Class 1 Graph
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Eric W. Weisstein, Oct 15 2004
EXTENSIONS
More terms from Vladeta Jovovic, Jun 30 2007
Verified up to a(9) by Eric W. Weisstein, Nov 21 2011
STATUS
approved