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Common difference in sets of 5 consecutive palindromic primes (palprimes) in arithmetic progression.
0

%I #8 Sep 30 2013 17:01:15

%S 1110000,810000,8100000,81000000,81000000,111000000,111000000,

%T 81000000,81000000,810000000,810000000,1110000000,810000000,810000000,

%U 810000000,810000000,810000000,1110000000,1110000000,810000000,810000000,810000000,1110000000,1110000000

%N Common difference in sets of 5 consecutive palindromic primes (palprimes) in arithmetic progression.

%e a(2)=810000 since (16831813861, 16832623861, 16833433861, 16834243861, 16835053861) is the second arithmetic progression of 5 consecutive palindromic primes with common difference = 810000.

%Y Cf. A059122.

%K nonn,base

%O 1,1

%A _Shyam Sunder Gupta_, Sep 29 2013