%I #2 Feb 11 2014 19:05:32
%S 1,1,1,1,1,1,1,0,1,1,-1,1,1,1,1,1,0,1,1,-1,1,1,0,1,1,0,1,1,-1,1,1,-1,
%T -1,1,0,1,1,1,1,1,1,1,1,0,1,0,-1,0,1,0,1,1,0,1,1,-1,1,1,0,1,1,0,1,1,
%U -1,1,1,0,1,1,0,1,0,0,1,1,0,1,1,0,-1,1,0,1,1,-1,1,-1,0,1,1,-1,1,1,1,1,1,0,1,1
%N Jacobi symbol(sigma(2n+1),2n+1).
%C Jacobi symbol(n,m) is defined only for (positive) odd numbers m.
%t Table[JacobiSymbol[DivisorSigma[1, 2 j + 1], 2 j + 1], {j, 0, 99}]
%K sign
%O 0,1
%A _Joseph L. Pe_, Nov 28 2002