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 A171404 #12 Feb 16 2025 08:33:11 %S A171404 218,223,224,225,227,228,341,342,343,344,346,545,547,548,549,550,601, %T A171404 803,804,818,819,820,923,924,925,929,938,941,943,944,945,951,952,955, %U A171404 956,958,962,963,964,969,974,975,976,982,985,1346,1451,1452,1454,1457,1458,1461,1466 %N A171404 Solutions to the equation M(n) = 3 (M = Mertens's function A002321). %H A171404 Seiichi Manyama, <a href="/A171404/b171404.txt">Table of n, a(n) for n = 1..10000</a> %H A171404 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/MertensFunction.html">Mertens Function</a> %Y A171404 Cf. A002321. %K A171404 nonn %O A171404 1,1 %A A171404 Neven Juric (neven.juric(AT)apis-it.hr), Sep 29 2010 %E A171404 More terms from _Seiichi Manyama_, Jan 05 2019