OFFSET
1,3
LINKS
Eric Weisstein's World of Mathematics, Crown Graph
Eric Weisstein's World of Mathematics, Minimal Edge Cover
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Eric W. Weisstein, Aug 09 2017
EXTENSIONS
a(6)-a(8) from Giovanni Resta, Aug 10 2017
a(1)-a(2) inserted by Eric W. Weisstein, Feb 14 2022
STATUS
approved