[seqfan] Re: a(n-1)+a(n) = palindrome
Alexander P-sky
apovolot at gmail.com
Tue Oct 19 16:26:51 CEST 2010
Hi Eric,
> I think this is a permutation of the naturals.
Are you artificially (in my view) prepending
1,2,3,4
in order to make it be permutation of the naturals ?
Shouldn't the sequence really start with 5 instead ?
ARP
==========================================
On 10/19/10, Eric Angelini <Eric.Angelini at kntv.be> wrote:
> Hello SeqFans,
>
>
>
> This is (I guess) the lexicographically first sequence
>
> with a(1)=1 and a(n-1)+a(n)= a palindrome number (see
>
> http://www.research.att.com/~njas/sequences/A002113)
>
>
>
> S = 1,2,3,4,5,6,16,17,27,28,38,39,49,50,52,14,8,25,19,36,
>
> 30,47,41,58,43,12,10,23,21,34,32,45,54,57,13,20,24,31,35,
>
> 42,46,53,48,7,15,18,26,29,37,40,59,62,69,72,79,22,11,33,44,
>
> 55,56,65,66,75,76,85,86,95,96,...
>
>
>
> I think this is a permutation of the naturals.
>
>
>
> Best,
>
> É.
>
> [Next week I'll compute the similar sequence T, where
>
> a(n)+n = palindrome]
>
>
>
>
>
>
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>
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