[seqfan] Re: a and 2a have (together) 10 different digits

[M. F. Hasler]

On Sat, Feb 8, 2014 at 2:04 PM, Eric Angelini <Eric.Angelini at kntv.be> wrote:

> (...)
>
> http://wiki.answers.com/Q/How_do_you_use_all_10_digits_to_form_a_fraction_equivalent_to_one_half
>
> I don't know if there are interesting
> finite seq like this one with different
> ratios i.e 1/3, 1/4, 1/5, etc.
>

See seq. oeis.org/A115922
Numbers n such that n and 2*n, taken together are pandigital. and
cross-references.

Maximilian