Consecutive Squarefrees, Not Coprime
Don Reble
djr at nk.ca
Sun Aug 21 07:14:10 CEST 2005
David, seqfans:
> 6 <=1292013541080148674
> I'm sure my bound on a(6) is rather loose and could be tightened with
> a little effort.
> Did you mean "what is the smallest consecutive squarefree a, b such that
> gcd(a, b) = n"? If so, I can confirm 1,2,3,5,7;
I believe David does mean that.
> for a(6), did you mean ">=" rather than "<="?
I believe David meant what he said, "<=".
Continuing my speculation on David's intentions and methods, the
sequence
11 (2) 5 29 31 (6) 23 7 17 (2) 19
yields a(6) <= 57879439071222. (Yay, the endpoints are squarefree.)
--
Don Reble djr at nk.ca
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