[seqfan] Re: nontrivial permutation of digits

[Charles Greathouse]

I think the "nontrivial" ignores the identities of the digits, so 22
is allowed since you can swap the digits. A comment to this effect
would be good.

Charles Greathouse
Analyst/Programmer
Case Western Reserve University

On Sun, Sep 30, 2012 at 3:52 PM, Jeremy Gardiner
<jeremy.gardiner at btinternet.com> wrote:
>
> Perhaps my understanding of 'nontrivial permutation of digits' is at fault:
>
> But I think this excludes the identity permutation?
>
> So:
>
> A007930  Some nontrivial permutation of digits gives an even number.
>
> 22, 44, 66, 88, ... Do not belong in this sequence?
>
> A007959  Some nontrivial permutation of digits is an odd number.
>
> 11, 33, 55, 77, ... Do not belong in this sequence?
>
> Jeremy
>
>
>
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