[seqfan] Re: New formula for A030101 ?

Neil Sloane njasloane at gmail.com
Sun Mar 16 18:02:50 CET 2014


I've updated A30101 accordingly.
Neil


On Sun, Mar 16, 2014 at 12:56 PM, W. Edwin Clark <wclark at mail.usf.edu>wrote:

> I think you want to replace f(4n+3)=3f(2n+1)+2f(n) by 3f(2n+1) - 2f(n) in
> the recurrence for f.
>
>
>
> On Sun, Mar 16, 2014 at 7:42 AM, Martin Møller Skarbiniks Pedersen <
> martin at linux.com> wrote:
>
> >   It looks like the sequences A030101 and f(x) in Euler Problem 463 are
> the
> > same but I am
> > not sure.
> >
> >   A030101: a(n) is the number produced when n is converted to base 2,
> > reversed and then converted back to base 10.
> >
> >   Euler Problem 463:
> >     f(1)=1, f(3)=3, f(2n)=f(n), f(4n+1)=2f(2n+1)-f(n),
> > f(4n+3)=3f(2n+1)+2f(n)
> >
> > Regards
> > Martin M. S. Pedersen
> >
> > _______________________________________________
> >
> > Seqfan Mailing list - http://list.seqfan.eu/
> >
>
> _______________________________________________
>
> Seqfan Mailing list - http://list.seqfan.eu/
>



-- 
Dear Friends, I have now retired from AT&T. New coordinates:

Neil J. A. Sloane, President, OEIS Foundation
11 South Adelaide Avenue, Highland Park, NJ 08904, USA.
Also Visiting Scientist, Math. Dept., Rutgers University, Piscataway, NJ.
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Email: njasloane at gmail.com



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