a(n) = smallest prime >a(n-1) such that sum of first n terms is Fib no.
Richard Guy
rkg at cpsc.ucalgary.ca
Sat Dec 21 00:37:06 CET 2002
I think that I have upped this to 10^64, and
someone who knew how to sieve could probably
go much further. It's a probably fruitless
task, but one admits to being tantalized by
u_n - u_37 =
919p for n = 144
5p 234
79p 264
9349p 306
Of course, those pees are industrial strength,
but there's no doubt that the small factors
are OK. R.
On Fri, 20 Dec 2002, Neil Fernandez wrote:
> 2,3,29,199,2351,24155233, next term >10^15
>
> a(n) = smallest prime > a(n-1) such that sum of first n terms is a
> Fibonacci number
>
> a(7), if it exists, > 10^15
>
> Neil
> --
> Neil Fernandez
>
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