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 A171427 #13 Feb 16 2025 08:33:11 %S A171427 221,553,555,556,559,560,562,565,569,571,572,574,575,576,579,580,582, %T A171427 595,596,598,933,935,936,966,1349,1350,1353,1362,1374,1375,1376,1377, %U A171427 1379,1380,1382,1446,1478,1945,1967,1968,1970,1971,1972,1974,1975,1976,1978,1981,1990 %N A171427 Solutions to the equation M(n) = 5 (M = Mertens's function A002321). %H A171427 Seiichi Manyama, <a href="/A171427/b171427.txt">Table of n, a(n) for n = 1..10000</a> %H A171427 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/MertensFunction.html">Mertens Function</a> %Y A171427 Cf. A002321. %K A171427 nonn %O A171427 1,1 %A A171427 Neven Juric (neven.juric(AT)apis-it.hr), Sep 29 2010 %E A171427 More terms from _Seiichi Manyama_, Jan 05 2019