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A121942
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Number of digraphs of hydrogen bonded water clusters.
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0
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OFFSET
| 2,2
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REFERENCES
| T. Miyake and M. Aida, "Enumeration of topology-distinct structures of hydrogen bonded water clusters", Chem. Phys. Lett., vol. 363 (2002) pp. 106-110. See Table 1 column 3 on page 109.
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EXAMPLE
| If n=5 then the number of digraphs of hydrogen bonded water clusters is 161.
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CROSSREFS
| Sequence in context: A111154 A028561 A009638 * A006294 A129437 A048252
Adjacent sequences: A121939 A121940 A121941 * A121943 A121944 A121945
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KEYWORD
| nonn
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AUTHOR
| Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Sep 03 2006
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