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%I #6 Sep 24 2021 10:20:43
%S 1,1,8,18,27,1000,21870
%N Number of maximal irredundant sets in the n-triangular honeycomb acute knight graph.
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/MaximalIrredundantSet.html">Maximal Irredundant Set</a>
%K nonn,more
%O 1,3
%A _Eric W. Weisstein_, Sep 23 2021