%I
%S 13,19,20,30,33,43,44,45,47,48,49,50,53,54,71,72,74,75,76,78,82,85,
%T 105,107,108,119,120,121,131,132,138,141,173,177,179,180,185,187,188,
%U 189,206,207,208,246,258,271,272,274,275,276,278,279,280,302,311,312,314,315
%N Solutions to the equation M(n) = 3 (M = Mertens's function A002321).
%H Seiichi Manyama, <a href="/A171098/b171098.txt">Table of n, a(n) for n = 1..10000</a>
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/MertensFunction.html">Mertens Function</a>
%Y Cf. A002321.
%K nonn
%O 1,1
%A Neven Juric (neven.juric(AT)apisit.hr), Sep 10 2010
%E More terms from _Seiichi Manyama_, Jan 03 2019
