OFFSET
3,1
LINKS
Christian Sievers, Table of n, a(n) for n = 3..200
Eric Weisstein's World of Mathematics, Maximal Irredundant Set
Eric Weisstein's World of Mathematics, Web Graph
CROSSREFS
KEYWORD
nonn
AUTHOR
Eric W. Weisstein, Aug 17 2017
EXTENSIONS
a(9) from Eric W. Weisstein, May 21 2019
a(10)-a(11) from Andrew Howroyd, Sep 08 2019
More terms from Christian Sievers, Nov 15 2023
STATUS
approved