%I #6 May 05 2015 20:54:31
%S 1,0,1,0,0,0,1,0,0,1,0,1,1,0,1,0,1,0,1,0,1,0,0,1,0,1,0,0,0,1,0,1,1,0,
%T 1,0,0,0,0,1,0,0,1,0,1,1,0,1,0,1,1,1,0,0,1,0,0,1,0,1,1,0,1,0,1,0,1,0,
%U 0,1,0,1,0,0,1,1,1,0,0
%N A254077(n) mod 2.
%C Much more unpredictable than (A098550 mod 2).
%H Reinhard Zumkeller, <a href="/A257585/b257585.txt">Table of n, a(n) for n = 1..10000</a>
%o (Haskell)
%o a257585 = flip mod 2 . a254077 -- _Reinhard Zumkeller_, May 05 2015
%Y Cf. A098550, A250299.
%K nonn
%O 1
%A _N. J. A. Sloane_, May 05 2015