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A056369
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Number of primitive (period n) bracelet structures using exactly five different colored beads.
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0
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0, 0, 0, 0, 1, 3, 16, 85, 434, 2270, 11530, 58397, 290689, 1436669, 7036417, 34286379, 166316979, 804556969, 3884248150, 18731031687, 90269841908, 434955103451, 2096028083116, 10104206843502
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,6
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COMMENTS
| Turning over will not create a new bracelet. Permuting the colors of the beads will not change the structure.
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REFERENCES
| M. R. Nester (1999). Mathematical investigations of some plant interaction designs. PhD Thesis. University of Queensland, Brisbane, Australia.
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FORMULA
| A056364(n)-A056363(n).
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CROSSREFS
| Cf. A056306.
Sequence in context: A025187 A151328 A076279 * A056360 A163604 A151329
Adjacent sequences: A056366 A056367 A056368 * A056370 A056371 A056372
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KEYWORD
| nonn
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AUTHOR
| Marks R. Nester (nesterm(AT)dpi.qld.gov.au)
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