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A099990 a(n) = Moebius(2n+1). 4

%I

%S 1,-1,-1,-1,0,-1,-1,1,-1,-1,1,-1,0,0,-1,-1,1,1,-1,1,-1,-1,0,-1,0,1,-1,

%T 1,1,-1,-1,0,1,-1,1,-1,-1,0,1,-1,0,-1,1,1,-1,1,1,1,-1,0,-1,-1,-1,-1,

%U -1,1,-1,1,0,1,0,1,0,-1,1,-1,1,0,-1,-1,1,1,1,0,-1,-1,0,1,-1,1,1,-1,-1,-1,0,0,-1,0,1,-1,-1,1,1,1,0,-1,-1,-1,-1,-1,1,1,1,0,1

%N a(n) = Moebius(2n+1).

%t lst={};Do[AppendTo[lst, MoebiusMu[n]], {n, 1, 6!, 2}];lst (* _Vladimir Joseph Stephan Orlovsky_, Sep 20 2008 *)

%Y Bisection of A008683. Cf. A099991.

%K sign,easy

%O 0,1

%A _N. J. A. Sloane_, Nov 20 2004

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Last modified March 26 05:43 EDT 2019. Contains 321481 sequences. (Running on oeis4.)