[seqfan] Re: Digit of a(n) is the difference of two digits of a(n)

Marc LeBrun mlb at well.com
Sun Dec 8 00:25:39 CET 2013


Heh, or 1123456789, if you believe numbers have infinitely many unwritten
0's on the left.  --MLB

>="Eric Angelini" <Eric.Angelini at kntv.be>

> Yes, that´s it, Maximilian!
> Best,
> É.
> 
> 
>> Le 7 déc. 2013 à 23:22, "M. F. Hasler" <seqfan at hasler.fr> a écrit :
>> 
>> If I understood well, an equivalent characterization is :
>> 
>> Numbers that have at least one digit "0" and at least two identical
>> digits (which may be two 0's).
>> 
>> So the least pandigital in this list is 10023456789.
>> 
>> Maximilian
>> 
>>> On Sat, Dec 7, 2013 at 2:42 PM, Eric Angelini <Eric.Angelini at kntv.be> wrote:
>>> 
>>> S=100,101,110,200,202,220,300,303,330,400,404,440,500,505,550,600,606,660,70
>>> 0,707,770,800,808,880,900,909,990,1000,1001,1002,1003,1004,1005,1006,1007,10
>>> 08,1009,1010,1011,1012,1013,1014,1015,1016,1017,1018,1019,1020,1021,1022,103
>>> 0,1031,...
>>> 
>>> Hello SeqFans,
>>> take any digit d of a(n): d is the difference between two digits of a(n).
>>> 
>>> What is the smallest pandigital a(n) with this property?
>>> Best,
>>> É.
>>> Catapulté de mon aPhone
>>> 
>>> _______________________________________________
>>> 
>>> Seqfan Mailing list - http://list.seqfan.eu/
>> 
>> _______________________________________________
>> 
>> Seqfan Mailing list - http://list.seqfan.eu/
> 
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