A056351 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give

A056351

Number of primitive (period n) bracelets using exactly five different colored beads.

0, 0, 0, 0, 12, 150, 1200, 7905, 46400, 255624, 1346700, 6901575, 34663020, 171785250, 843130676, 4110950625, 19951305240, 96528446150, 466073976900, 2247626821095, 10832193570260, 52194107870250

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,5

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..22.

FORMULA

sum mu(d)*A056345(n/d) where d|n.

CROSSREFS

Cf. A056290.

Sequence in context: A141326 A154733 A305544 * A056345 A264233 A068768

Adjacent sequences: A056348 A056349 A056350 * A056352 A056353 A056354

KEYWORD

nonn

AUTHOR

Marks R. Nester

STATUS

approved