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 A280728 #11 Sep 03 2019 03:04:10
%S A280728 1,0,0,2,0,0,3,0,0,4,0,0,4,0,0,8,0,0,8,0,0,8,0,0,4,0,0,8,0,0,12,0,0,8,
%T A280728 0,0,8,0,0,16,0,0,24,0,0,64,0,0,8,0,0,16,0,0,20,0,0,16,0,0,32,0,0,64,
%U A280728 0,0,24,0,0,32,0,0,8,0,0,128,0,0,12,0,0
%N A280728 Number of even divisors of Lucas(n).
%H A280728 Amiram Eldar, <a href="/A280728/b280728.txt">Table of n, a(n) for n = 0..1000</a>
%F A280728 a(n) = A183063(A000032(n)).
%t A280728 a[n_]:=Block[{d=Divisors[LucasL[n]]}, Count[EvenQ[d], True]]; Table[a[n], {n, 0, 80}]
%Y A280728 Cf. A000032, A183063, A193495.
%K A280728 nonn
%O A280728 0,4
%A A280728 _Vincenzo Librandi_, Jan 09 2017
%E A280728 Offset corrected by _Amiram Eldar_, Sep 03 2019