[seqfan] Re: Mathoverflow discussion about A007018 a(n) = a(n-1)^2 + a(n-1), a(0)=1 and an open problem

israel at math.ubc.ca israel at math.ubc.ca
Fri Jan 4 22:14:52 CET 2013


Or rather, if this comment can be proven to be correct...

Robert Israel
University of British Columbia

On Jan 4 2013, Georgi Guninski wrote:

> A question on Mathoverflow: 
> http://mathoverflow.net/questions/118050/is-oeis-a007018-really-a-subsequence-of-squarefree-numbers
>
>asks if this comment is correct:
>A007018 a(n) = a(n-1)^2 + a(n-1), a(0)=1
>
>> Subsequence of squarefree numbers (A005117). - Reinhard Zumkeller, Nov 
>> 15 2004
>
>If the comment is correct, it might solve an open problem
>about squarefree values of polynomials.
>
>
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