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 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

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Last modified April 19 10:30 EDT 2024. Contains 371785 sequences. (Running on oeis4.)