%I #4 Sep 14 2012 11:06:54
%S 4,11,16,22,28,35,40,48,53,58,65,70,78,83,89,94,99,107,112,119,124,
%T 130,135,140,148,153,160,165,171,178,184,190,197,203,208,215,220,226,
%U 231,238,244,249,256,261,269,274,281,287,294,299,305,310,317,322,328,335
%N Bisection of A078649.
%F a(n) = A078649(2n).
%K nonn
%O 1,1
%A _Benoit Cloitre_, Feb 07 2009