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A105602 Divide each Fibonacci number by its primitive part. 4
1, 1, 1, 1, 1, 2, 1, 3, 2, 5, 1, 24, 1, 13, 10, 21, 1, 136, 1, 165, 26, 89, 1, 1008, 5, 233, 34, 1131, 1, 26840, 1, 987, 178, 1597, 65, 46512, 1, 4181, 466, 47355, 1, 1269736, 1, 53133, 10370, 28657, 1, 2179296, 13, 825275, 3194, 364179, 1, 14927768, 445 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,6
COMMENTS
Sylvester dividends for Fibonacci numbers.
a(n)=1 for n=1, 4 and all primes, which is sequence A046022.
LINKS
FORMULA
a(n) = Fibonacci(n)/A061446(n).
MATHEMATICA
a[n_] := Fibonacci[n]/Product[Fibonacci[d]^MoebiusMu[n/d], {d, Divisors[n]}]; Table[a[n], {n, 55}] (* James C. McMahon, Jan 25 2024 *)
CROSSREFS
Sequence in context: A181363 A105800 A365859 * A111079 A165006 A134735
KEYWORD
easy,nonn
AUTHOR
Paul Barry, Apr 15 2005
STATUS
approved

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Last modified March 28 09:04 EDT 2024. Contains 371240 sequences. (Running on oeis4.)