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Search: id:A026298
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| A026298 |
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Number of polyhexes of class PF2. |
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+0
9
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| 4, 28, 176, 950, 4908, 24402, 119204, 575312, 2757460, 13157752
(list; graph; listen)
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OFFSET
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7,1
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COMMENT
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See reference for precise definition.
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REFERENCES
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S. J. Cyvin et al., Enumeration and classification of benzenoid systems 32. Normal perifusenes with two internal vertices, J. Chem. Inform. Comput. Sci., 32 (1992), 532-540.
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CROSSREFS
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Cf. A026106, A026118, A026298, A030519, A030520, A030525, A030529, A030532, A030534.
Sequence in context: A128721 A053524 A125687 this_sequence A001396 A155611 A002903
Adjacent sequences: A026295 A026296 A026297 this_sequence A026299 A026300 A026301
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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