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Palindromic primes whose digits contain circles.
1

%I #7 Oct 17 2019 22:05:04

%S 98689,9686869,9809089,9888889,9889889,9896989,9908099,9980899,

%T 9989899,900808009,906686609,906868609,906989609,908000809,908060809,

%U 908808809,908888809,909868909,960898069,968606869,968666869,968868869,968898869

%N Palindromic primes whose digits contain circles.

%Y Cf. A053580.

%K nonn,base

%O 1,1

%A _Patrick De Geest_, Jan 15 2000