OFFSET
1,2
LINKS
Andrew Howroyd, Table of n, a(n) for n = 1..15
Eric Weisstein's World of Mathematics, Connected Dominating Set
Eric Weisstein's World of Mathematics, Grid Graph
CROSSREFS
KEYWORD
nonn
AUTHOR
Eric W. Weisstein, May 29 2017
EXTENSIONS
a(6)-a(13) from Andrew Howroyd, Sep 04 2017
STATUS
approved