[seqfan] Re: An integer sequence related to asymptotic behavior of the sine and cosine integrals
v.reshetnikov at gmail.com
Thu May 12 20:16:07 CEST 2016
This is a great observation. Any ideas how it can be proved? Are there any
connections between the sine integral and this combinatorial problem?
On Wed, May 11, 2016 at 4:54 AM, Moses, Peter J. C. <
mows at mopar.freeserve.co.uk> wrote:
> Hi Vladimir,
> Every other term of A003319.
> generates your list.
> Best regards,
> From: "Vladimir Reshetnikov" <v.reshetnikov at gmail.com>
> Sent: Wednesday, May 11, 2016 1:55 AM
> To: <seqfan at seqfan.eu>
> Subject: [seqfan] An integer sequence related to asymptotic behavior of
> the sine and cosine integrals
> Dear SeqFans,
>> I found the following sequence related to asymptotic behavior of the sine
>> and cosine integrals:
>> 1, 1, -13, 461, -29093, 2829325, -392743957, 73943424413,
>> -18176728317413, ...
>> Except a few first terms, all other terms are only conjectures so far
>> (I'm not even sure they all are exact integers, although it appears
>> so). For more details, see:
>> h <goog_1462977391>ttp://
>> Please let me know if you have any ideas how to find a general formula
>> for them.
>> --ThanksVladimir Reshetnikov
>> Seqfan Mailing list - http://list.seqfan.eu/
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