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%I #12 Nov 23 2023 08:01:50
%S 1,4,12,266,4087,216185,13731833,2373155507,746775944641
%N Number of maximal irredundant sets in the n X n king graph.
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/KingGraph.html">King Graph</a>
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/MaximalIrredundantSet.html">Maximal Irredundant Set</a>
%K nonn,more
%O 1,2
%A _Eric W. Weisstein_, Aug 17 2017
%E a(5) from _Eric W. Weisstein_, Sep 08 2021
%E a(6)-a(9) from _Christian Sievers_, Nov 22 2023
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