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 A192277 #13 Sep 23 2022 10:15:33 %S A192277 120,146,206,246,268,288,290,326,342,430,448,472,530,626,658,718,726, %T A192277 766,804,818,836,926,982,996,1002,1028,1200,1212,1246,1256,1312,1332, %U A192277 1360,1438,1506,1508,1538,1542,1692,1718,1728,1746,1806,1840,2078,2148,2388 %N A192277 Impossible values for both sum of proper divisors of k and sum of anti-divisors of k. %H A192277 Amiram Eldar, <a href="/A192277/b192277.txt">Table of n, a(n) for n = 1..639</a> %Y A192277 Intersection of A005114 and A074898. %Y A192277 Cf. A001065, A066272, A066417, A078923. %K A192277 nonn %O A192277 1,1 %A A192277 _Paolo P. Lava_, Jul 06 2011