%I #10 Apr 14 2023 15:56:46
%S 3,6,9,33,66,99,111,141,171,222,252,282,303,333,363,393,414,444,474,
%T 525,555,585,606,636,666,696,717,747,777,828,858,888,909,939,969,999,
%U 1221,1551,1881,2112,2442,2772,3003,3333,3663,3993,4224,4554,4884,5115
%N Palindromic and divisible by 3.
%H Harvey P. Dale, <a href="/A045638/b045638.txt">Table of n, a(n) for n = 1..2000</a>
%t Select[Range[3,5500,3],PalindromeQ] (* _Harvey P. Dale_, Apr 14 2023 *)
%K nonn,base
%O 1,1
%A _Jeff Burch_