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Search: id:A056364
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| A056364 |
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Number of primitive (period n) bracelet structures using a maximum of five different colored beads. |
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+0
3
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| 1, 1, 2, 5, 11, 32, 88, 315, 1134, 4691, 19838, 88467, 399679, 1839857, 8533474, 39893579, 187393549, 884152226, 4185740194, 19876589828, 94633345517, 451615299593, 2159769331316, 10348546459872
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OFFSET
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1,3
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COMMENT
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Turning over will not create a new bracelet. Permuting the colors of the beads will not change the structure.
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REFERENCES
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M. R. Nester (1999). Mathematical investigations of some plant interaction designs. PhD Thesis. University of Queensland, Brisbane, Australia.
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FORMULA
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sum mu(d)*A056355(n/d) where d|n.
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CROSSREFS
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Cf. A056301.
Sequence in context: A124483 A079571 A151395 this_sequence A056365 A006400 A080068
Adjacent sequences: A056361 A056362 A056363 this_sequence A056365 A056366 A056367
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KEYWORD
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nonn
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AUTHOR
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Marks R. Nester (nesterm(AT)dpi.qld.gov.au)
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