Two digits

On Sat, Feb 2, 2013 at 7:21 PM, Eric Angelini wrote:

> Hello SeqFans,

> No term of S is the sum of two digits of S. Is this the

> lexicographically first [strictly increasing] such sequence?

>

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

[Maximilian Hasler] :

J'ai proposé ça comme https://oeis.org/A211186

__________

Date d’envoi : dimanche 3 février 2013, 01:38

> Hello again SeqFans,

> T is fun to compute to, I guess:

> No term of T is the product of two digits of T. Is this the

> lexicographically first [strictly increasing] such sequence?

>

> T=2,3,4,5,7,9,40,44,46,47,50,55,56,57,59,60,64,65,66,67,69,70,

> 74,75,76,77,79,90,94,95,96,97,99,...

Best,

É.