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A293249
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Number of matchings in the n-triangular honeycomb bishop graph.
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0
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1, 3, 24, 624, 58258, 21423356, 33352210384, 234271975272172, 7849205797114197704, 1318509837007765330964948, 1161589241831987552884873549832, 5592410686612429649991093735982825800, 152814054664056604403587836700924195641924920
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OFFSET
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1,2
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COMMENTS
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C# software that can be used to compute this sequence can be found in A270228 (with rook column heights of 1..n). - Andrew Howroyd, Oct 04 2017
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LINKS
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Eric Weisstein's World of Mathematics, Matching
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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