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Search: id:A121113
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A121113 Edge-rooted tree-like octagonal systems (see Cyvin reference for precise definition). +0
1
0, 0, 6, 60, 522, 4452, 38130, 329832, 2884056, 25476936 (list; graph; listen)
OFFSET

1,3

REFERENCES

S. J. Cyvin et al., Enumeration of tree-like octagonal systems: catapolyoctagons, ACH Models in Chem. 134 (1997), 55-70.

CROSSREFS

Sequence in context: A043033 A061495 A102232 this_sequence A091710 A054880 A122653

Adjacent sequences: A121110 A121111 A121112 this_sequence A121114 A121115 A121116

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Aug 13, 2006

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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