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%I #4 Dec 25 2025 09:37:01
%S 2,8,64,250,2256,25591
%N Number of irredundant sets in the n-triangular honeycomb obtuse knight graph.
%H Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/IrredundantSet.html">Irredundant Set</a>.
%H Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/TriangularHoneycombObtuseKnightGraph.html">Triangular Honeycomb Obtuse Knight Graph</a>.
%K nonn,more
%O 1,1
%A _Eric W. Weisstein_, Dec 25 2025