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%I #10 Jan 14 2023 16:14:36
%S 0,0,1,9,64,2197,608923,216000000
%N Number of minimal edge coverings of the n-triangular honeycomb acute knight graph.
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/MinimalEdgeCover.html">Minimal Edge Cover</a>
%Y Cf. A289904, A321486.
%K nonn,more
%O 1,4
%A _Eric W. Weisstein_, Feb 14 2022
%E a(8) from _Andrew Howroyd_, Feb 21 2022