OFFSET
1,3
LINKS
Eric Weisstein's World of Mathematics, Maximal Irredundant Set
Eric Weisstein's World of Mathematics, Knight Graph
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Eric W. Weisstein, Aug 17 2017
EXTENSIONS
a(5)-a(6) from Andrew Howroyd, Aug 19 2017
STATUS
approved