%I A147820
%S A147820 1,2,3,4,5,6,7,8,9,10,11,12,14,15,16,18,19,20,21,22,23,24,26,27,29,30,
%T A147820 31,33,34,35,36,37,39,40,41,42,44,45,48,49,50,51,52,53,54,55,56,57,63,
%U A147820 64,65,66,68,69,70,74,75,76,78,79,81
%N A147820 Nearest-neighbors of odd primes, divided by 2.
%F A147820 a(n) = A147819(n)/2.
%Y A147820 Cf. A134926, A134933, A147819.
%Y A147820 Sequence in context: A026467 A088185 A118844 this_sequence A033892 A033620 
               A033637
%Y A147820 Adjacent sequences: A147817 A147818 A147819 this_sequence A147821 A147822 
               A147823
%K A147820 easy,nonn
%O A147820 1,2
%A A147820 Omar E. Pol (info(AT)polprimos.com), Nov 14 2008