A171096 - OEIS

%I #14 Nov 20 2017 09:39:29

%S 3,4,6,10,15,16,22,26,27,28,35,36,38,41,57,59,60,62,63,64,66,69,87,88,

%T 91,92,102,123,124,125,126,129,134,135,136,143,144,151,152,153,155,

%U 156,158,165,167,168,169,210,213

%N Solutions to the equation M(n) = -1 (M = Mertens's function A002321).

%H Seiichi Manyama, <a href="/A171096/b171096.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>

%o (PARI) isok(n) = sum(k=1, n, moebius(k)) == -1; \\ _Michel Marcus_, Nov 20 2017

%Y Cf. A028442, A118684.

%K nonn

%O 1,1

%A Neven Juric (neven.juric(AT)apis-it.hr), Sep 10 2010