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A056370
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Number of primitive (period n) bracelet structures using exactly six different colored beads.
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2
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0, 0, 0, 0, 0, 1, 3, 27, 171, 1249, 8389, 56078, 360430, 2272598, 14037552, 85516427, 514976658, 3074986236, 18239677629, 107654218055, 632996894925, 3711499485032, 21716765203045, 126880009551584
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OFFSET
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1,7
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COMMENTS
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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. [See A056391 for pdf file of Chap. 2]
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LINKS
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FORMULA
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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