On Wed, Jun 11, 2014 at 9:59 PM, Frank Adams-Watters <franktaw at netscape.net> wrote: > Once you have a k such that k >= n and a(k) > n, n can no longer appear in > the sequence; otherwise a(k) would be n. Take n = 2 and k = 2. We have a(k) = 3 > n, but n still appears in the sequence as a(3). Regards, Max