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 A171393 #16 Feb 16 2025 08:33:11 %S A171393 659,660,662,669,671,672,674,675,676,681,687,688,1091,1092,1094,1101, %T A171393 1138,1607,1608,1610,1611,1612,1651,1652,1654,1657,1659,1660,1662, %U A171393 1685,1687,1688,1695,1696,1714,1715,1716,1742,1745,1746,1757,1762,1790,1791,1792,2390,2393 %N A171393 Solutions to the equation M(n) = -10 (M = Mertens's function A002321). %H A171393 Seiichi Manyama, <a href="/A171393/b171393.txt">Table of n, a(n) for n = 1..10000</a> %H A171393 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/MertensFunction.html">Mertens Function</a> %t A171393 Position[Accumulate[MoebiusMu[Range[2500]]], -10]//Flatten (* _Vincenzo Librandi_, Jan 05 2019 *) %K A171393 nonn %O A171393 1,1 %A A171393 Neven Juric (neven.juric(AT)apis-it.hr), Sep 28 2010 %E A171393 More terms from _Seiichi Manyama_, Jan 05 2019