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%I #4 Dec 23 2025 09:34:21
%S 2,8,27,144,1331,27000,569344,16777216,1083206683,85307250648,
%T 9197641041408,1896999488202671,567844742926891708
%N Number of irredundant sets in the n-triangular honeycomb acute 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/TriangularHoneycombAcuteKnightGraph.html">Triangular Honeycomb Acute Knight Graph</a>.
%K nonn,more
%O 1,1
%A _Eric W. Weisstein_, Dec 23 2025