A075601 - OEIS

%I #5 Dec 05 2013 19:55:39

%S 13,2131,121313,51213137,3512131379,135121313797,21351213137977,

%T 5213512131379777,352135121313797771,63521351213137977713,

%U 16352135121313797771319,9163521351213137977713193

%N a(1) = 13 and then the smallest prime that is obtained by placing digits on both sides of the previous term. Or smallest prime that encompasses a(n-1).

%Y Cf. A075595, A075596, A075597, A075598, A075599, A075600, A075602.

%K base,nonn

%O 1,1

%A _Amarnath Murthy_, Sep 28 2002

%E Corrected and extended by _Sascha Kurz_, Jan 23 2003