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Number of chordless cycles in the n X n knight graph.
1

%I #7 Jan 08 2018 18:34:22

%S 0,0,1,64,651,4680,56919,2578420,205224704

%N Number of chordless cycles in the n X n knight graph.

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/ChordlessCycle.html">Chordless Cycle</a>

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/KnightGraph.html">Knight Graph</a>

%Y Cf. A001230, A234623.

%K nonn,more

%O 1,4

%A _Eric W. Weisstein_, Jan 02 2018

%E a(6)-a(9) from _Andrew Howroyd_, Jan 08 2018