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A032323 Number of aperiodic necklaces with n labeled beads of 4 colors. 0
4, 12, 120, 1440, 24480, 482400, 11793600, 329011200, 10567065600, 380131315200, 15220275840000, 669519696384000, 32145251314176000, 1671451069736448000, 93606882905023488000, 5616332944630087680000 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..16.

C. G. Bower, Transforms (2)

Index entries for sequences related to Lyndon words

FORMULA

"CHJ" (necklace, identity, labeled) transform of 4, 0, 0, 0...

Equals n! * A027377(n).

CROSSREFS

Sequence in context: A053491 A285451 A249788 * A053551 A009663 A197899

Adjacent sequences:  A032320 A032321 A032322 * A032324 A032325 A032326

KEYWORD

nonn

AUTHOR

Christian G. Bower

STATUS

approved

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Last modified October 17 05:23 EDT 2018. Contains 316275 sequences. (Running on oeis4.)