[seqfan] Re: A133471

Neil Sloane njasloane at gmail.com
Fri Mar 13 21:37:01 CET 2015


I agree!  here is the sequence:

t1 := [0, 1, 4, 37, 692, 17337, 624824, 30633713, 1961182456, 158886412649,
15890602447356,

    1922921782542725, 276916627288599756, 46800832933555901489,
9173240171604245291600,

    1798001874467365633055089]

Here are the ratios of successive terms:

t2 := [4., 9.250000000, 18.70270270, 25.05346821, 36.03991463, 49.02774701,
64.02039661,

    81.01562002, 100.0123433, 121.0099988, 144.0082638, 169.0069440,
196.0059169,

    196.0051019]

Obviously there was an error at a(4), as Charles says.  Let's correct it!

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 Fri, Mar 13, 2015 at 4:24 PM, Charles Greathouse <
charles.greathouse at case.edu> wrote:

> It looks like there was a mistake at a(4), and it affected the later terms.
> I think we should correct it.
>
> Charles Greathouse
> Analyst/Programmer
> Case Western Reserve University
>
> On Fri, Mar 13, 2015 at 4:12 PM, Harvey P. Dale <hpd at hpdale.org> wrote:
>
> >         I cannot seem to generate the terms of the above sequence from
> its
> > definition.
> >         Best,
> >         Harvey
> >
> >
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