Primefree sequences in the OEIS

Jud McCranie j.mccranie at adelphia.net
Fri Oct 21 02:12:40 CEST 2005


At 07:38 PM 10/20/2005, N. J. A. Sloane wrote:

>Sequence An in Sloane's Online Encyclopedia of Integer Sequences
>contains no primes.
>
>THIS IS REALLY ill-defined!  There are two interpretations:
>A_n as visible in the current OEIS contains no primes
>or
>A_n when considered in full - meaning usually all infinitely
>many terms - contains no prime
>
>Only the second version is at all interesting, but I'm afraid
>it was the former that was calculated. Does anyone know?

I don't know what was actually done, but it would not be feasible to do the 
second one.







More information about the SeqFan mailing list