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Base-5 palindromes that start with 4.
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%I #7 Oct 21 2023 11:28:10

%S 4,24,104,109,114,119,124,504,534,564,594,624,2504,2529,2554,2579,

%T 2604,2634,2659,2684,2709,2734,2764,2789,2814,2839,2864,2894,2919,

%U 2944,2969,2994,3024,3049,3074,3099,3124,12504,12654

%N Base-5 palindromes that start with 4.

%t Select[Range[13000],IntegerDigits[#,5]==Reverse[IntegerDigits[#,5]]&&IntegerDigits[#,5][[1]] == 4&] (* _Harvey P. Dale_, Oct 21 2023 *)

%K nonn,base

%O 1,1

%A _Clark Kimberling_