%I A161209
%S A161209 1,2,3,4,5,6,7,6,6,9,12,15,15,14,15,10,6
%N A161209 a(n) = A161207(n+1)/2.
%Y A161209 Cf. A161206, A161207, A161208.
%Y A161209 Sequence in context: A017882 A112264 A017872 this_sequence A000026 A005599 
               A071934
%Y A161209 Adjacent sequences: A161206 A161207 A161208 this_sequence A161210 A161211 
               A161212
%K A161209 more,nonn
%O A161209 1,2
%A A161209 Omar E. Pol (info(AT)polprimos.com), Jun 08 2009