And yet -- a dictionary must still have entries for "the", "of", "take", and "and", even though these entries are rarely referred to. On Tue, Nov 10, 2015 at 11:27 AM, Charles Greathouse < charles.greathouse@case.edu> wrote:
A few possibilities include: A052432 Smallest conductor of elliptic curve with rank n. A053624 Highly composite odd numbers. A053644 Most significant bit of n. A053695 Differences between record prime gaps. A054504 Numbers n such that Mordell's equation y^2 = x^3 + n has no integral solutions. but I don't know of a good way to find such sequences except by looking.
As for unpopular sequences, A000017 is a good candidate, being marked "dead" as an erroneous duplicate of a (later) sequence. A000038 is easy and pretty niche. A000053 and A000054 are often mentioned in discussions of what a sequence could be but I don't think anyone looks them up.
Charles Greathouse Analyst/Programmer Case Western Reserve University
On Mon, Nov 9, 2015 at 1:28 PM, Thane Plambeck <tplambeck@gmail.com> wrote:
Here's an imprecisely-stated question about the OEIS that I've had for awhile. What are its "most misplaced" entries? For example the Fibonacci sequence at A000045 is hardly misplaced.
Is there something past 50,000 that "should" be in the top 200? (I have no definition for "should" in mind...I welcome potential ideas.) Conversely, is there something in the top 100 that no one is ever looking for?
On Mon, Nov 9, 2015 at 9:56 AM, Neil Sloane <njasloane@gmail.com> wrote:
Nice video, thanks for the link. I just checked the OEIS, where the relevant sequence is https://oeis.org/A060464, and I was happy to see that Charles Greathouse already added a link there to the video
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@gmail.com
On Sat, Nov 7, 2015 at 10:37 PM, Stuart Anderson < stuart.errol.anderson@gmail.com> wrote:
33 is the lowest unsolved problem in "summing three cubes" with Tim Browning. https://www.youtube.com/watch?v=wymmCdLdPvM _______________________________________________ math-fun mailing list math-fun@mailman.xmission.com https://mailman.xmission.com/cgi-bin/mailman/listinfo/math-fun
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-- Thane Plambeck tplambeck@gmail.com http://counterwave.com/ _______________________________________________ math-fun mailing list math-fun@mailman.xmission.com https://mailman.xmission.com/cgi-bin/mailman/listinfo/math-fun
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