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Search: id:A007152
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| A007152 |
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Evolutionary trees of magnitude n.
(Formerly M3628)
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+0
2
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| 1, 1, 4, 28, 301, 4466, 84974, 1974904, 54233540, 1718280152
(list; graph; listen)
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OFFSET
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1,3
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REFERENCES
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N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
L. R. Foulds and R. W. Robinson, Counting certain classes of evolutionary trees with singleton labels, Congress. Num., 44 (1984), 65-88.
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LINKS
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Index entries for sequences related to trees
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CROSSREFS
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Cf. A007151.
Sequence in context: A078634 A091485 A112938 this_sequence A113371 A080636 A140425
Adjacent sequences: A007149 A007150 A007151 this_sequence A007153 A007154 A007155
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KEYWORD
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nonn,easy,more
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AUTHOR
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R. W. Robinson, rwr(AT)pollux.cs.uga.edu
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