[seqfan] Re: (no subject)

[Michael Porter]

I see 1, 2, 4, 7, and a(5) can't be 8 or 9.  It can't be anything between 10 and 19, since you could take the 1 from a(5) and the 1 from a(1) to make 2=a(2).

But after that, the sequence becomes "integers with only 4,7,8,9 in their decimal representation," which is not very interesting.

- Michael




________________________________
 From: Eric Angelini <Eric.Angelini at kntv.be>
To: "seqfan at list.seqfan.eu" <seqfan at list.seqfan.eu> 
Sent: Saturday, February 2, 2013 3:21 PM
Subject: [seqfan] (no subject)
 

Hello SeqFans,
No term of S is the sum of two digits of S.
Is this the lexicographically first such sequence?

S=1,2,4,7,44,47,48,49,74,77,78,79,84,87,88,89,94,97,98,99,...

Best,
É.





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