Presentation with sequence = A084935?

[Berny]

Don Reble says:

> Seek k such that 2897*2^k + 1 is prime. (k=9715, probably?)

Doh! Of course. And indeed, 2897*2^k+1 is prime for k=9715 and no other 
smaller k's. No great news, anyway, since from 
http://www.prothsearch.net/sierp.html,

"The value of k = 2897 had been eliminated as early as 1981 with the 
larger prime 2897*2^9715+1"

We are only 24 years late.

                Berny Boncompagni

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