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%I #15 Mar 25 2019 14:02:16
%S 11411,14341,1464641,1447441,1444441,144404441,14244444241,
%T 34444344443,74444444447,1444447444441,3444444444443,144444454444441,
%U 14144444444444141,34444444044444443,1414444444444444141,1444444447444444441,104444444444444444401
%N Smallest palindromic prime containing exactly n 4's.
%H Chai Wah Wu, <a href="/A083975/b083975.txt">Table of n, a(n) for n = 1..500</a>
%t Table[d = 4; i = 1;
%t While[ x = IntegerDigits[Prime[i]];
%t x != Reverse[x] || Count[x, d] != n , i++];
%t FromDigits[x], {n, 1, 6}] (* _Robert Price_, Mar 25 2019 *)
%Y Cf. A083972, A083973, A083975, A083976, A083977, A083978, A083979, A083980, A083981.
%K base,nonn
%O 1,1
%A _Amarnath Murthy_ and Meenakshi Srikanth (menakan_s(AT)yahoo.com), May 21 2003
%E More terms from _Ray G. Opao_, Sep 20 2004
%E Corrected and extended by _Giovanni Resta_, Feb 08 2006
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