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A270313 Denominator of Fibonacci(n)/n. 3
1, 2, 3, 4, 1, 3, 7, 8, 9, 2, 11, 1, 13, 14, 3, 16, 17, 9, 19, 4, 21, 22, 23, 1, 1, 26, 27, 28, 29, 3, 31, 32, 33, 34, 7, 1, 37, 38, 39, 8, 41, 21, 43, 44, 9, 46, 47, 1, 49, 2, 51, 52, 53, 27, 11, 8, 57, 58, 59, 1, 61, 62, 63, 64, 13, 33, 67, 68, 69, 14, 71, 1, 73, 74, 3 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
a(n) = 1 for n in A023172; a(n) = n for n in A074215. - Robert Israel, Mar 16 2016
LINKS
FORMULA
a(n) = n/A104714(n). - Robert Israel, Mar 16 2016
MAPLE
seq(n/igcd(n, combinat:-fibonacci(n)), n=1..100); # Robert Israel, Mar 16 2016
MATHEMATICA
Table[Fibonacci[n]/n, {n, 1, 100}] // Denominator
PROG
(PARI) a(n) = denominator(fibonacci(n)/n); \\ Michel Marcus, Mar 16 2016
CROSSREFS
Cf. A000045, A023172, A074215, A104714, A127787, A270312 (numerators).
Sequence in context: A159798 A294236 A280694 * A343251 A327464 A318308
KEYWORD
nonn,frac
AUTHOR
STATUS
approved

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Last modified July 25 01:41 EDT 2024. Contains 374585 sequences. (Running on oeis4.)