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Number of maximal matchings in the 3 X n rook graph.
4

%I #7 Mar 14 2021 18:44:26

%S 1,3,10,84,852,11580,197640,4314240,100855440,3342895920,98070406560,

%T 4652556511680,163444377096000,10568979882901440,431650452829115520,

%U 36599310178253222400,1702185892636880851200,183500657952824967955200,9569677207227878912371200

%N Number of maximal matchings in the 3 X n rook graph.

%H Andrew Howroyd, <a href="/A341848/b341848.txt">Table of n, a(n) for n = 0..50</a>

%Y Row n=3 of A341847.

%Y Cf. A341502, A341851.

%K nonn

%O 0,2

%A _Andrew Howroyd_, Feb 21 2021