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 A144754 #22 May 01 2021 02:09:36
%S A144754 4,8,9,10,12,17,18,19,20,21,22,24,25,26,28,32,35,37,38,39,41,42,43,44,
%T A144754 45,46,49,50,51,52,53,54,56,57,58,60,65,66,68,71,72,75,77,78,79,80,83,
%U A144754 85,86,87,89,90,91,92,93,94,96,99,101,102,103,105,106,107,108,109,110
%N A144754 Integers that have a prime number of 0's in their binary expansion.
%H A144754 Indranil Ghosh, <a href="/A144754/b144754.txt">Table of n, a(n) for n = 1..25000</a>
%e A144754 66 written in binary is 1000010. This has five 0's and five is a prime. So 66 is included in the sequence.
%t A144754 Select[Range@ 120, PrimeQ@ DigitCount[#, 2, 0] &] (* _Michael De Vlieger_, Oct 26 2017 *)
%o A144754 (PARI) isok(n) = isprime(#binary(n) - hammingweight(n)); \\ _Michel Marcus_, Feb 23 2016
%o A144754 (Python)
%o A144754 from sympy import isprime
%o A144754 i=j=1
%o A144754 while j<=250:
%o A144754 if isprime(bin(i)[2:].count("0")):
%o A144754 print(str(j)+" "+str(i))
%o A144754 j+=1
%o A144754 i+=1 # _Indranil Ghosh_, Feb 03 2017
%Y A144754 Cf. A052294.
%K A144754 base,nonn
%O A144754 1,1
%A A144754 _Leroy Quet_, Sep 20 2008
%E A144754 Many more terms from _Reikku Kulon_, Sep 21 2008
%E A144754 Name edited by _Michel Marcus_, Apr 30 2021