login
This site is supported by donations to The OEIS Foundation.

 

Logo

Please make a donation to keep the OEIS running. We are now in our 55th year. In the past year we added 12000 new sequences and reached 8000 citations (which often say "discovered thanks to the OEIS"). We need to raise money to hire someone to manage submissions, which would reduce the load on our editors and speed up editing.
Other ways to donate

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A214781 a(n) = smallest k>=2 such that n divides Fibonacci(k-1)+2 5
2, 4, 2, 4, 5, 10, 6, 0, 10, 7, 0, 10, 12, 22, 8, 0, 16, 10, 11, 28, 0, 0, 9, 0, 48, 40, 34, 22, 0, 34, 0, 0, 0, 16, 28, 10, 36, 0, 18, 0, 18, 0, 17, 0, 34, 22, 14, 0, 54, 148, 16, 40, 52, 34, 0, 0, 11, 0, 0, 34, 28, 0, 0, 0, 68, 0, 21, 16 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

0 is inserted if no such k exists.

LINKS

Table of n, a(n) for n=1..68.

EXAMPLE

n=1 divides F(0)+2=2. n=2 divides F(0)+2=2. n=3 divides F(1)+2=3. n=4 divides F(3)+2=4.

PROG

(PARI) a(n) = {k = 2; while (((fibonacci(k-1)+2) % n), k++; if (k > 6*n+2 , return(0)); ); return (k); } \\ Michel Marcus, May 30 2013

CROSSREFS

Cf. A157725, A001177, A214782.

Sequence in context: A116982 A216621 A300448 * A214850 A236186 A143271

Adjacent sequences:  A214778 A214779 A214780 * A214782 A214783 A214784

KEYWORD

nonn

AUTHOR

Art DuPre, Aug 03 2012

STATUS

approved

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified December 7 17:41 EST 2019. Contains 329847 sequences. (Running on oeis4.)