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A056345 Number of bracelets using exactly five different colored beads. 2
0, 0, 0, 0, 12, 150, 1200, 7905, 46400, 255636, 1346700, 6901725, 34663020, 171786450, 843130688, 4110958530, 19951305240, 96528492700, 466073976900, 2247627076731, 10832193571460, 52194109216950 (list; graph; refs; listen; history; 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.

FORMULA

A032276(n)-5*A032275(n)+10*A027671(n)-10*A000029(n)+5.

CROSSREFS

Cf. A056285.

Sequence in context: A141326 A154733 A056351 * A068768 A053507 A060917

Adjacent sequences:  A056342 A056343 A056344 * A056346 A056347 A056348

KEYWORD

nonn

AUTHOR

Marks R. Nester (nesterm(AT)dpi.qld.gov.au)

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Last modified February 17 19:13 EST 2012. Contains 206085 sequences.