[seqfan] Re: A156856 and A031768 related?

Maximilian Hasler maximilian.hasler at gmail.com
Sat Feb 21 18:24:55 CET 2009


%C A031768 The first term not of the form A156856(n)=(45n)^2+n  is
a(93)=17147972,
with contfrac(sqrt(17147972)) = [4141; [91, 90, 91, 8282]]

Maximilian

On Sat, Feb 21, 2009 at 12:52 PM, Maximilian Hasler
<maximilian.hasler at gmail.com> wrote:
> One should be careful, c.f. David's reply to Vincenzo,
> http://list.seqfan.eu/pipermail/seqfan/2009-February/000874.html
>
> I suppose the first is only a subsequence of the second.
>
> Maximilian
>
> On Sat, Feb 21, 2009 at 12:04 PM, Richard Mathar
> <mathar at strw.leidenuniv.nl> wrote:
>>
>> Are these two sequences related (beyond the visible coincidence in
>> the initial terms)?
>>
>> http://research.att.com/~njas/sequences/?q=id:A156856|id:A031768
>>
>> 2026,8102,18228,32404,50630,72906,99232,129608,164034,202510,245036,291612,342238,396914,455640,518416,585242,656118,731044,810020,893046,980122,1071248,1166424,1265650,1368926,1476252,1587628,1703054,1822530,
>>
>> 2026,8102,18228,32404,50630,72906,99232,129608,164034,202510,245036,291612,342238,396914,455640,518416,585242,656118,731044,810020,893046,980122,1071248,1166424,1265650,1368926,1476252,1587628,1703054,1822530,
>>
>>
>>
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>>
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>>
>




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