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Search: id:A036419
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| A036419 |
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Number of ternary rooted trees with n nodes and height exactly 4. |
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+0
1
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| 0, 0, 0, 0, 1, 3, 8, 15, 27, 43, 67, 97, 136, 183, 239, 300, 369, 432, 498, 551, 594, 614, 624, 601, 570, 514, 453, 378, 312, 238, 181, 128, 89, 56, 37, 20, 12, 6, 3, 1, 1
(list; graph; listen)
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OFFSET
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0,6
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REFERENCES
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A. T. Balaban, J. W. Kennedy and L. V. Quintas, The number of alkanes having n carbons and a longest chain of length d, J. Chem. Education, 65 (No. 4, 1988), 304-313.
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LINKS
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Index entries for sequences related to rooted trees
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CROSSREFS
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Cf. A036370, A036437.
Adjacent sequences: A036416 A036417 A036418 this_sequence A036420 A036421 A036422
Sequence in context: A081276 A047837 A047873 this_sequence A054107 A097589 A015631
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KEYWORD
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nonn,fini,full
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AUTHOR
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njas, Eric Rains (rains(AT)caltech.edu)
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