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%I #13 Apr 06 2018 17:15:12
%S 1,1,47,8617,4437215,18283403428,478131755555352,65146261730656227552,
%T 51516890628947512147926356,244151636345172523021724077440553,
%U 6697138334086551576618194527162685383161
%N Number of matchings in the n X n knight graph.
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/IndependentEdgeSet.html">Independent Edge Set</a>
%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>
%Y Row sums of A302241.
%Y Cf. A289200, A289202, A141243.
%K nonn,more
%O 1,3
%A _Eric W. Weisstein_, May 22 2017
%E a(7)-a(11) from _Andrew Howroyd_, Jul 01 2017
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