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 A031179 #17 Feb 16 2025 08:32:35 %S A031179 0,1,2,3,5,6,7,8,9,10,11,12,14,15,17,18,19,20,21,23,24,26,27,29,30,32, %T A031179 33,34,35,36,37,38,39,41,42,43,44,45,47,48,50,51,53,54,56,57,58,59,60, %U A031179 62,63,65,66,67,68,69,70,71,72,73,74,75,76,77,78,80,81,83,84,85 %N A031179 Numbers having period-1 3-digitized sequences. %C A031179 Equivalently, numbers that eventually reach a fixed point under "x -> sum of cubes of digits of x". - _Reinhard Zumkeller_, Sep 17 2009 %H A031179 Reinhard Zumkeller, <a href="/A031179/b031179.txt">Table of n, a(n) for n = 1..1000</a> %H A031179 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/Digitaddition.html">Digitaddition</a> %Y A031179 Complement of A165336. %Y A031179 Union of A035504, A008585, A165333, A165334, and A165335. %Y A031179 Cf. A031178. %K A031179 nonn,base %O A031179 1,3 %A A031179 _Eric W. Weisstein_ %E A031179 Missing a(0)=0 inserted by _Sean A. Irvine_, Apr 14 2020