This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A382337 #28 Mar 30 2025 15:23:01 %S A382337 0,11,22,33,44,55,66,77,88,99,121,242,363,484,1001,1111,1221,1331, %T A382337 1441,1551,1661,1771,1881,1991,2002,2112,2222,2332,2442,2552,2662, %U A382337 2772,2882,2992,3003,3113,3223,3333,3443,3553,3663,3773,3883,3993,4004,4114,4224,4334,4444,4554,4664,4774,4884,4994 %N A382337 Palindromes in base 10 in which the difference between the sums of the digits in the even and odd positions is zero. %H A382337 <a href="/index/Pac#palindromes">Index entries for sequences related to palindromes</a>. %t A382337 Select[11 * Range[0, 500], PalindromeQ[#] && Total[IntegerDigits[#][[1 ;; -1 ;; 2]]] == Total[IntegerDigits[#][[2 ;; -1 ;; 2]]] &] (* _Amiram Eldar_, Mar 22 2025 *) %Y A382337 Intersection of A002113 and A135499. %K A382337 nonn,easy,base %O A382337 1,2 %A A382337 _Alexander Yutkin_, Mar 22 2025