[seqfan] Re: n and 2n have a digit in common

Giovanni Resta g.resta at iit.cnr.it
Wed Apr 16 14:41:46 CEST 2014


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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