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Search: id:A070285
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| 1, 12, 432, 32000, 4050000, 784147392, 215886856192, 80244904034304, 38742048900000000, 23579476910000000000, 17665746626579203620864, 15979082092619945289449472, 17171174753799627467382181888
(list; graph; listen)
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OFFSET
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2,2
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COMMENT
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Number of spanning trees in the bipartite graph K(n,n-1).
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MATHEMATICA
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Table[n^(n - 2)*(n - 1)^(n - 1), {n, 2, 15}]
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CROSSREFS
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Cf. A068087.
Sequence in context: A129006 A067429 A054913 this_sequence A041617 A126603 A092704
Adjacent sequences: A070282 A070283 A070284 this_sequence A070286 A070287 A070288
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KEYWORD
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nonn
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AUTHOR
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Sharon Sela (sharonsela(AT)hotmail.com), May 10 2002
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EXTENSIONS
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Edited by Robert G. Wilson v (rgwv(AT)rgwv.com), May 14 2002
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