%I #10 Aug 31 2023 02:54:30
%S 5,13,29,43,61,307,383,2689,9209,14897,83557,274679,598333,3516973,
%T 11295673,24104629,229561369
%N Smallest k such that f(f(...f(k))) > 1, where f(k) = A065371(k) is iterated n times.
%C This sequence contains only prime numbers. - _Paul Tek_, Jun 10 2013
%H Paul Tek, <a href="/A065374/a065374.txt">C++ program for this sequence</a>
%e a(2) = 13 because A065372(13) = 3 and A065372(i) = 1 for i < 13.
%e After 10 iterations of A065371 we have a sequence starting with 14896 1's followed by 6, so a(10)= 14897.
%Y Cf. A065371, A065372, A065373.
%K more,nonn
%O 1,1
%A _Reinhard Zumkeller_, Nov 02 2001
%E a(14)-a(16) from _Paul Tek_, Jun 10 2013
%E a(17) from _Sean A. Irvine_, Aug 31 2023