cp's OEIS Frontend

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.

A382337 Palindromes in base 10 in which the difference between the sums of the digits in the even and odd positions is zero.

Original entry on oeis.org

0, 11, 22, 33, 44, 55, 66, 77, 88, 99, 121, 242, 363, 484, 1001, 1111, 1221, 1331, 1441, 1551, 1661, 1771, 1881, 1991, 2002, 2112, 2222, 2332, 2442, 2552, 2662, 2772, 2882, 2992, 3003, 3113, 3223, 3333, 3443, 3553, 3663, 3773, 3883, 3993, 4004, 4114, 4224, 4334, 4444, 4554, 4664, 4774, 4884, 4994
Offset: 1

Views

Author

Alexander Yutkin, Mar 22 2025

Keywords

Crossrefs

Intersection of A002113 and A135499.

Programs

  • Mathematica
    Select[11 * Range[0, 500], PalindromeQ[#] && Total[IntegerDigits[#][[1 ;; -1 ;; 2]]] == Total[IntegerDigits[#][[2 ;; -1 ;; 2]]] &] (* Amiram Eldar, Mar 22 2025 *)