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%I #9 Aug 06 2024 02:06:50
%S 2,3,2,5,7,2,3,11,2,5,3,2,313,7,2,323,3,101,313,717,11,5,2,343,131,
%T 151,353,181,191,323,373,3,383,2,737,313,747,3113,7,313,353,373,383,
%U 343,1331,31113,767,353,313,2,323,5,373,3223,797,727,3,383,757,787,3553
%N Palindromic concatenation of prime divisors of numbers from A192137.
%e a(13) = 313 because A192137(13) = 39 = 3 * 13.
%t f[n_] := FromDigits[Flatten[IntegerDigits /@ FactorInteger[n][[;; , 1]]]]; Select[f /@ Range[2, 1900], PalindromeQ] (* _Amiram Eldar_, Aug 06 2024 *)
%Y Cf. A002113, A002385, A084317, A084092, A192137, A192139, A192140, A192141.
%K nonn,base
%O 1,1
%A _Jaroslav Krizek_, Jun 24 2011
%E More terms from _Amiram Eldar_, Aug 06 2024