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A056352 Number of primitive (period n) bracelets using exactly six different colored beads. 0
0, 0, 0, 0, 0, 60, 1080, 11970, 105840, 821952, 5874480, 39713490, 258136200, 1631272140, 10096734312, 61536365730, 370710950400, 2213749552980, 13132080672480, 77509456122366, 455754569691600 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,6

COMMENTS

Turning over will not create a new bracelet.

REFERENCES

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]

LINKS

Table of n, a(n) for n=1..21.

FORMULA

Sum mu(d)*A056346(n/d) where d|n.

CROSSREFS

Cf. A056291.

Sequence in context: A271651 A223348 A305545 * A056346 A283722 A105252

Adjacent sequences:  A056349 A056350 A056351 * A056353 A056354 A056355

KEYWORD

nonn

AUTHOR

Marks R. Nester

STATUS

approved

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Last modified July 16 09:13 EDT 2020. Contains 335784 sequences. (Running on oeis4.)