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 A063745 #15 Dec 09 2024 14:55:26
%S A063745 4,6,10,14,16,22,24,26,34,36,38,40,46,54,56,58,60,62,64,74,82,84,86,
%T A063745 88,90,94,96,100,104,106,118,122,126,132,134,136,140,142,144,146,150,
%U A063745 152,156,158,160,166,178,184,194,196,198,202,204,206,210,214,216,218,220
%N A063745 Even numbers with an even number of prime factors (counted with multiplicity).
%H A063745 Harry J. Smith, <a href="/A063745/b063745.txt">Table of n, a(n) for n = 1..1000</a>
%e A063745 a(2)=6, which is even with even number of prime factors, i.e., 2.
%t A063745 Select[2*Range[200],EvenQ[PrimeOmega[#]]&] (* _Harvey P. Dale_, Mar 07 2015 *)
%o A063745 (PARI) isok(k) = { k%2==0 && bigomega(k)%2 == 0 } \\ _Harry J. Smith_, Aug 29 2009
%Y A063745 Intersection of A028260 and A005843.
%Y A063745 Cf. A046337.
%K A063745 nonn
%O A063745 1,1
%A A063745 _Shyam Sunder Gupta_, Feb 16 2002