[seqfan] Re: [LIKELY_SPAM] Re: 0-additive and first differences

[Frank Adams-Watters]

OK. 0-additive is different from what I thought.

So, I want the lexicographically first sequence such that the sequence and its absolute first differences are all distinct. This starts as I stated, and it isn't in the database. A095115 is an approximation to this, but it doesn't really do any backtracking and is thus finite.

Franklin T. Adams-Watters

-----Original Message-----
From: Eric Angelini <Eric.Angelini at kntv.be>
To: Sequence Fanatics Discussion list <seqfan at list.seqfan.eu>
Sent: Wed, May 13, 2015 1:37 pm
Subject: [seqfan] Re: [LIKELY_SPAM] Re: 0-additive and first differences


Hello Frank,
no, your last 19 is forbidden 
as 19 is 7+12 and both terms 
are
already in the seq

Catapulté de mon aPhone

> Le 13 mai 2015 à 19:40, Frank
Adams-Watters <franktaw at netscape.net> a écrit :
> 
> If I understand what's
happening here, wouldn't we instead start
> 
>      1,3,7,12,18,10,19, ...
>
diff  2, 4, 5, 6,  8,  9
> 
> Franklin T. Adams-Watters
> 
> -----Original
Message-----
> From: Eric Angelini <Eric.Angelini at kntv.be>
> To: Sequence
Fanatics Discussion list <seqfan at list.seqfan.eu>
> Sent: Wed, May 13, 2015
11:36 am
> Subject: [seqfan] 0-additive and first differences
> 
> 
> Hello
SeqFans,
> This is (I hope) the lexico-first 0-additive seq such
> that
>
sequence and first differences list all positive numbers 
> exactly once:
>

> 
> S = 1, 3, 7, 12, 18, 26, 17, 28, 41, 51, 37, 22, 47, ...
> diff    2  4
5   6  
> 8   9  11  13  10  14  15 
> 25
> 
> Best,
> É.
> 
> 
>
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