%I #3 Mar 30 2012 17:29:51
%S 1,3,6,9,12,6,3,9,6,27,9,3,15,12,30,3,6,24,36,27,15,9,21,15,24,36,39,
%T 18,12,3,57,3,45,51,42,33,12,9,75,48,21,57,18,24,27,15,6,18,12,138,9,
%U 6,30,60,39,117,3,21,24,21,42,15,24,45,63,6,15,15,42,153,9,15,45,141,39,12
%N Bisection of first difference/2 of A084696.
%C Half the difference of the prime pair added to A084696 at each step.
%F a(n) = (A084696(2n+1) - A084696(2n))/2.
%Y Cf. A084696.
%K nonn
%O 1,2
%A _Ray Chandler_, Sep 26 2006
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