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 A383193 #10 Apr 29 2025 13:19:41 %S A383193 1,3,5,6,10,11,12,13,19,20,21,23,25,26,27,28,36,37,38,39,41,42,46,47, %T A383193 49,51,53,55,56,57,58,59,69,70,71,72,73,75,77,78,82,83,84,85,91,92,93, %U A383193 94,98,99,101,102,106,107,109,111,113,115,117,118,119,120 %N A383193 The lexicographically earliest "mean-central" sequence, as is defined in A383192. %H A383193 Art of Problem Solving, <a href="https://artofproblemsolving.com/community/c6h3549401p34560823">European Girls' Mathematical Olympiad 2025 Problem 2</a> %H A383193 Yifan Xie, <a href="/A383193/a383193_1.txt">Python program</a> %Y A383193 Cf. A383192, A383194. %K A383193 nonn %O A383193 1,2 %A A383193 _Yifan Xie_, Apr 20 2025