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 A265572 #4 Dec 10 2015 10:56:33 %S A265572 0,1,2,3,4,5,6,7,8,10,10,20,20,20,20,20,20,20,20,20,20,30,30,30,30,30, %T A265572 30,30,30,30,30,40,40,40,40,40,40,40,40,40,40,50,50,50,50,50,50,50,50, %U A265572 50,50,60,60,60,60,60,60,60,60,60,60,70,70,70,70,70,70,70,70,70,70,80,80,80,80,80,80,80,80,80,80,82 %N A265572 Smallest base-9 palindrome m >= n, written in base 10. %Y A265572 Sequences related to palindromic floor and ceiling: A175298, A206913, A206914, A261423, A262038, and the large block of consecutive sequences beginning at A265509. %K A265572 nonn,base %O A265572 0,3 %A A265572 _N. J. A. Sloane_, Dec 10 2015