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Indicating the neighbor with a greater greatest prime factor.
1

%I #4 Mar 30 2012 18:50:43

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

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

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

%N Indicating the neighbor with a greater greatest prime factor.

%C A093074(n)=A006530(n+a(n)); A006530(n)<=A006530(n+a(n)).

%K sign

%O 1,1

%A _Reinhard Zumkeller_, Mar 18 2004