%I #14 Jun 02 2019 23:43:43
%S 1,1,10,538,94868,59059198
%N Number of maximal matchings in the n X n knight graph.
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/KnightGraph.html">Knight Graph</a>
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/Matching.html">Matching</a>
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/MaximalIndependentEdgeSet.html">Maximal Independent Edge Set</a>
%t Table[Length[FindIndependentVertexSet[LineGraph[KnightTourGraph[n, n]], Infinity, All]], {n, 5}]
%K nonn,more
%O 1,3
%A _Eric W. Weisstein_, Jun 28 2017
%E a(6) from _Eric W. Weisstein_, Jun 02 2019