A189784 - OEIS

%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