This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A162644 #17 Jul 07 2020 08:11:56 %S A162644 1,2,3,5,6,7,8,10,11,13,14,15,17,19,21,22,23,24,26,27,29,30,31,32,33, %T A162644 34,35,36,37,38,39,40,41,42,43,46,47,51,53,54,55,56,57,58,59,61,62,65, %U A162644 66,67,69,70,71,73,74,77,78,79,82,83,85,86,87,88,89,91,93,94,95,96,97,100 %N A162644 Numbers m such that A162511(m) = +1. %C A162644 Also numbers n with A008836(n)=(-1)^A001221(n). - _Enrique Pérez Herrero_, Aug 03 2012 %C A162644 This sequence has an asymptotic density (1 + A065472/zeta(2))/2 = 0.735840... (Mossinghoff and Trudgian, 2019). - _Amiram Eldar_, Jul 07 2020 %H A162644 Amiram Eldar, <a href="/A162644/b162644.txt">Table of n, a(n) for n = 1..10000</a> %H A162644 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 A162644 Select[Range[100], EvenQ[PrimeOmega[#] - PrimeNu[#]] &] (* _Amiram Eldar_, Jul 07 2020 *) %Y A162644 Complement of A162645. %Y A162644 A002035 is a subsequence. %Y A162644 Cf. A008836, A001221, A036537, A065472. %K A162644 nonn %O A162644 1,2 %A A162644 _Reinhard Zumkeller_, Jul 08 2009