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%I #4 Mar 30 2012 18:57:26
%S 1,2,4,5,7,8,10,11,13,14,15,17,18,20,21,23,24,26,27,29,30,31,33,34,36,
%T 37,39,40,42,43,45,46,47,49,50,52,53,55,56,58,59,61,62,63,65,66,68,69,
%U 71,72,74,75,77,78,79,81,82,84,85,87,88,90,91,93,94,95,97,98,100,101,103,104,106,107,108,110,111,113,114,116,117,119,120
%N (A189782)/2.
%C See A189781, A189782.
%t (See A189781.)
%Y Cf. A189781, A189782.
%K nonn
%O 1,2
%A _Clark Kimberling_, Apr 27 2011
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