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A141456 Number of hypoenergetic chemical trees with n vertices. +0
1
1, 1, 1, 1, 3, 2, 2, 8, 10, 4, 17, 52, 33, 29, 141, 250 (list; graph; listen)
OFFSET

3,5

REFERENCES

Ivan Gutman and Slavko Radenkovic,"Hypoenergetic molecular graphs",Indian J. of Chemistry, vol. 46A, (2007), pp. 1733-1736. See Table 1 on page 1735.

EXAMPLE

The number of hypoenergetic chemical trees with 18 vertices is 250.

CROSSREFS

Sequence in context: A092419 A020835 A055674 this_sequence A137445 A011319 A091015

Adjacent sequences: A141453 A141454 A141455 this_sequence A141457 A141458 A141459

KEYWORD

nonn

AUTHOR

Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Aug 08 2008

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Last modified November 30 22:12 EST 2008. Contains 150989 sequences.


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