%I #9 Dec 11 2015 09:03:58
%S 2,3,5,7,11,31,71,73,97,311,733,971,991,9311,999331,
%T 1111111111111111111,11111111111111111111111
%N Numbers with nonincreasing digits such that every cyclic shift is a prime.
%C a(18) is too big to display, see the b-file.
%C a(n) is the intersection of the sequences A068652 and A009996.
%H Chai Wah Wu, <a href="/A265324/b265324.txt">Table of n, a(n) for n = 1..18</a>
%Y Cf. A068652, A009996, A263499.
%K nonn,base
%O 1,1
%A _Chai Wah Wu_, Dec 07 2015