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A328889
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Number of acyclic edge covers of the complete bipartite graph K_{n,n}.
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2
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1, 6, 132, 6728, 632970, 96208632, 21634786586, 6765592120576, 2811089200308642, 1498814096387846600, 997811910708863804202, 811362765374061475234464, 791392079095826028308709026, 912043721764132114072259699656, 1226095938791120621169019081161450
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OFFSET
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1,2
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LINKS
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CROSSREFS
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Cf. A297077 (not necessarily covering edge sets).
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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