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A277213 Least k such that Fibonacci(k + 1) has n times as many distinct prime factors as Fibonacci(k), or 0 if no such k exists. 0
3, 7, 17, 23, 29, 47, 167, 419, 83 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Least k such that A001221(Fibonacci(k+1)) / A001221(Fibonacci(k)) = n, or 0 if no such k exists.

LINKS

Table of n, a(n) for n=1..9.

EXAMPLE

a(2) = 7 because Fibonacci(8) = 21 = 3*7 (2 distinct prime factors) and Fibonacci(7) = 13 (1 prime factor), and 2/1 is 2.

CROSSREFS

Cf. A000045, A001221, A022307, A277207.

Sequence in context: A254680 A018411 A083989 * A152451 A097958 A118940

Adjacent sequences:  A277210 A277211 A277212 * A277214 A277215 A277216

KEYWORD

nonn,more

AUTHOR

Altug Alkan, Oct 05 2016

EXTENSIONS

a(8)-a(9) from Charles R Greathouse IV, Oct 05 2016

STATUS

approved

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Last modified November 15 15:59 EST 2018. Contains 317239 sequences. (Running on oeis4.)