[seqfan] Re: a(n+1) is the multiple of at least one digit of a(n)
Hans Havermann
gladhobo at teksavvy.com
Tue May 28 21:03:53 CEST 2013
Conjecture: For nonnegative integer n, 2*10^n appears at index 2*10^n.
On May 28, 2013, at 10:46 AM, Eric Angelini <Eric.Angelini at kntv.be> wrote:
> I guess this is a permutation of the Naturals:
>
> a(n+1) is the smallest integer not yet in the sequence such that
> a(n+1) is the multiple of at least one digit of a(n):
>
> S=1,2,4,8,16,3,6,12,5,10,7,14,9,18,11,13,15,17,19,20,22,24,...
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