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A214894 Conway's subprime Fibonacci sequence starting with (10, 18). 0

%I #11 Jul 17 2015 00:24:49

%S 10,18,14,16,15,31,23,27,25,26,17,43,30,73,103,88,191,93,142,47,63,55,

%T 59,57,58,23,27

%N Conway's subprime Fibonacci sequence starting with (10, 18).

%C Similar to the Fibonacci recursion starting with (10, 18), but each new nonprime term is divided by its least prime factor. Sequence enters a loop of length 19 after 8 terms on reaching (23, 27).

%H Richard K. Guy, Tanya Khovanova, and Julian Salazar, <a href="http://arxiv.org/abs/1207.5099">Conway's subprime Fibonacci sequences</a>, arXiv:1207.5099 [math.NT]

%t see A214674

%Y Cf. A000045, A020639, A175723, A214551, A014682, A214674, A214892-A214898.

%K nonn

%O 1,1

%A _Wouter Meeussen_, Jul 29 2012

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Last modified July 30 13:53 EDT 2024. Contains 374743 sequences. (Running on oeis4.)