[seqfan] Re: n and 2n have a digit in common
Eric Angelini
Eric.Angelini at kntv.be
Wed Apr 16 15:03:30 CEST 2014
Thanks, Giovanni!
Best,
É.
Catapulté de mon aPhone
> Le 16 avr. 2014 à 14:41, "Giovanni Resta" <g.resta at iit.cnr.it> a écrit :
>
>> On 04/16/2014 01:59 PM, Eric Angelini wrote:
>>
>> Hello SeqFans,
>> not sure this is in the OEIS:
>> S=10,12,20,21,24,30,37, 40,42,49,50,51,...
>>
>> Integers sharing at least one
>> digit with their double.
>
> Yes, it is your sequence A129845.
>
> The others in OEIS are
> 3x = A129846
> 4x = A129848
>
> Giovanni
>
>
>
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