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%I #11 Jan 21 2014 12:30:20
%S 0,-1,-1,-2,0,-2,0,-2,-1,1,1,1,3,1,1,2,6,2,6,4,2,4,6,4,9,9,7,5,5,1,13,
%T 11,13,11,17,10,14,16,16,14,18,12,20,16,14,12,22,24,25,21,21,21,21,23,
%U 25,23,25,23,27,19,19,25,33,30,28,24,36,36,42,36,38,32,38,40,40,38,40,40,42,40,45,43
%N Prime(n) - 1 - A006218(n).
%C a(n) > 0 for n >= 10.
%C The old entry with this sequence number was a duplicate of A052509.
%H David Applegate and N. J. A. Sloane, <a href="/A052511/b052511.txt">Table of n, a(n) for n = 1..1000</a>
%Y See A088526 for another version.
%K sign
%O 1,4
%A _David Applegate_ and _N. J. A. Sloane_, Oct 14 2008
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