%I #14 Jul 07 2020 08:12:10

%S 4,9,12,16,18,20,25,28,44,45,48,49,50,52,60,63,64,68,72,75,76,80,81,

%T 84,90,92,98,99,108,112,116,117,121,124,126,132,140,147,148,150,153,

%U 156,162,164,169,171,172,175,176,188,192,198,200,204,207,208,212,220,228

%N Numbers m such that A162511(m) = -1.

%C Numbers n where A001222(n)-A001221(n) is odd. - _Enrique Pérez Herrero_, Jul 07 2012

%C This sequence has an asymptotic density (1 - A065472/zeta(2))/2 = 0.264159... (Mossinghoff and Trudgian, 2019). - _Amiram Eldar_, Jul 07 2020

%H Enrique Pérez Herrero, <a href="/A162645/b162645.txt">Table of n, a(n) for n = 1..5000</a>

%H Michael J. Mossinghoff and Timothy S. Trudgian, <a href="https://arxiv.org/abs/1906.02847">A tale of two omegas</a>, arXiv:1906.02847 [math.NT], 2019.

%t Select[Range[10^2],OddQ[PrimeOmega[#]-PrimeNu[#]]&] (* _Enrique Pérez Herrero_, Jul 07 2012 *)

%Y Complement of A162644.

%Y Subsequence of A072587.

%Y Cf. A001221, A001222, A065472, A162643, A162511.

%K nonn

%O 1,1

%A _Reinhard Zumkeller_, Jul 08 2009