The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A253318 Indices of primes in the 7th-order Fibonacci number sequence, A060455. 4
 7, 8, 11, 12, 14, 15, 16, 17, 18, 19, 21, 23, 26, 32, 33, 36, 42, 44, 71, 72, 137, 180, 193, 285, 679, 955, 1018, 1155, 1176, 1191, 2149, 2590, 2757, 3364, 4233, 6243, 6364, 7443, 10194, 11254, 13318, 18995, 20478, 22647, 29711, 34769, 61815, 71993, 107494, 135942, 148831 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS a(52) > 2*10^5. LINKS Table of n, a(n) for n=1..51. Tony D. Noe and Jonathan Vos Post, Primes in Fibonacci n-step and Lucas n-step Sequences, J. of Integer Sequences, Vol. 8 (2005), Article 05.4.4 MATHEMATICA a={1, 1, 1, 1, 1, 1, 1}; step=7; lst={}; For[n=step, n<=1000, n++, sum=Plus@@a; If[PrimeQ[sum], AppendTo[lst, n]]; a=RotateLeft[a]; a[[7]]=sum]; lst CROSSREFS Cf. A001590, A001631, A100683, A231574, A231575, A232542, A214899, A230607, A020992, A232498, A214727, A081172, A214752, A141523, A214825, A235862, A000288, A000322, A000383, A249413, A060455. Sequence in context: A071117 A054221 A195240 * A277026 A309592 A090385 Adjacent sequences: A253315 A253316 A253317 * A253319 A253320 A253321 KEYWORD nonn AUTHOR Robert Price, Dec 30 2014 STATUS approved

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

Last modified July 18 13:04 EDT 2024. Contains 374378 sequences. (Running on oeis4.)