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

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A254082 Number of primitive (=aperiodic) n-bead necklaces with colored beads of exactly 10 different colors. 2
362880, 18144000, 515592000, 10977120000, 195113318400, 3063348288000, 43943631732000, 588790762560000, 7481812222684800, 91158709273632000, 1073686615986821760, 12301136459932320000, 137753173599205449600, 1513588462073525376000, 16368017165881385004000 (list; graph; refs; listen; history; text; internal format)
OFFSET

10,1

LINKS

Alois P. Heinz, Table of n, a(n) for n = 10..1000

MAPLE

with(numtheory):

b:= proc(n, k) option remember; `if`(n=0, 1,

      add(mobius(n/d)*k^d, d=divisors(n))/n)

    end:

a:= n-> add(b(n, 10-j)*binomial(10, j)*(-1)^j, j=0..10):

seq(a(n), n=10..30);

CROSSREFS

Column k=10 of A254040.

Sequence in context: A029577 A179967 A133360 * A228912 A213871 A179064

Adjacent sequences:  A254079 A254080 A254081 * A254083 A254084 A254085

KEYWORD

nonn

AUTHOR

Alois P. Heinz, Jan 25 2015

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified June 26 00:12 EDT 2022. Contains 354870 sequences. (Running on oeis4.)