[seqfan] Re: A080150

[Neil Sloane]

Robert,  Thank you for catching the error in A080150, and then fixing it.
It looks OK now.

Best regards
Neil

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.
Phone: 732 828 6098; home page: http://NeilSloane.com
Email: njasloane at gmail.com



On Mon, Aug 5, 2019 at 11:24 PM <israel at math.ubc.ca> wrote:

> A080150 has the Name Let m = Wonderful Demlo number A002477(n); a(n) = sum
> of squares of digits of m.
>
> But this does not at all match the Data:
>
> 1, 16, 81, 256, 625, 1296, 2401, 4096, 6561, 6724, 7225, 8100, 9409,
> 11236,
> 13689, 16900, 21025, 26244, 26569, 27556, 29241, 31684, 34969, 39204,
> 44521, 51076, 59049, 59536, 61009, 63504, 67081, 71824, 77841, 85264,
> 94249, 104976, 105625
>
> For example, A002477(3) = 12321, and 1^2+2^2+3^2+2^2+1^2=19, not 81.
>
> Instead, the Data are A080151(n)^2, as noted in the Comment (and also the
> first Comment of A080151).
>
> So, should we just change the Name to "a(k) = A080151(k)^2"?
> Or is the current Name somehow a garbled version of some correct identity?
>
> Cheers,
> Robert
>
>
> --
> Seqfan Mailing list - http://list.seqfan.eu/
>