OFFSET
3,1
LINKS
Eric Weisstein's World of Mathematics, Irredundant Set
Eric Weisstein's World of Mathematics, Polygon Diagonal Intersection Graph
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Eric W. Weisstein, Mar 19 2018
EXTENSIONS
a(7) from Andrew Howroyd, Mar 21 2018
STATUS
approved