%I #5 Sep 11 2021 08:21:03
%S 4,22,76,406,2304,14316
%N Number of irredundant sets in the n-triangular (Johnson) graph.
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/IrredundantSet.html">Irredundant Set</a>
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/TriangularGraph.html">Triangular Graph</a>
%K nonn,more
%O 3,1
%A _Eric W. Weisstein_, Sep 11 2021