[seqfan] Sturdy and flimsy numbers.

Antti Karttunen antti.karttunen at gmail.com
Sun Dec 20 18:57:27 CET 2009


I followed an A-number from one frame of the OEIS movie,
and found this:

Just wondering, how well-defined this kind of sequence is?

That is, is there some absolute upper limit of k for each n,
after which the program can finish the testing loop?

And BTW, this is just "the kettle blaming the casserole", or something like
as I have created my own
on similar shaky foundations.

(One would like also to compute the setwise difference A115857 \ A065621.
It is clear that for all n in A065621 such solutions exist.)


Antti Karttunen

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