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 A265548 #4 Dec 10 2015 10:32:12 %S A265548 0,1,2,3,4,6,6,12,18,24,12,12,12,18,24,18,18,18,18,24,24,24,24,24,24, %T A265548 26,26,52,78,104,31,31,57,83,109,36,36,62,88,114,41,41,67,93,119,46, %U A265548 46,72,98,124,52,52,52,78,104,57,57,57,83,109,62,62,62,88,114,67,67,67,93,119,72,72,72,98,124,78,78,78,78 %N A265548 a(n) = smallest base-5 palindrome m >= n such that every base-5 digit of n is <= the corresponding digit of m; m is written in base 10. %Y A265548 Sequences related to palindromic floor and ceiling: A175298, A206913, A206914, A261423, A262038, and the large block of consecutive sequences beginning at A265509. %K A265548 nonn,base %O A265548 0,3 %A A265548 _N. J. A. Sloane_, Dec 10 2015