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 A347253 #9 Sep 24 2021 16:23:19
%S A347253 16,56,96,136,176,196,216,256,296,336,376,416,456,476,496,536,576,616,
%T A347253 656,696,736,756,776,816,856,896,936,976,1016,1036,1056,1096,1136,
%U A347253 1156,1176,1216,1256,1296,1316,1336,1376,1416,1456,1496,1536,1576,1596,1616,1656
%N A347253 Positive integers that are the product of two integers ending with 4.
%F A347253 Lim_{n->infinity} a(n)/a(n-1) = 1.
%e A347253 16 = 4*4, 56 = 4*14, 96 = 4*24, 136 = 4*34, 176 = 4*44, 196 = 14*14, 216 = 4*54, ...
%t A347253 a={}; For[n=0, n<=200, n++, For[k=0, k<=n, k++, If[Mod[10*n+6, 10*k+4]==0 && Mod[(10*n+6)/(10*k+4), 10]==4 && 10*n+6>Max[a], AppendTo[a, 10*n+6]]]]; a
%o A347253 (Python)
%o A347253 def aupto(lim): return sorted(set(a*b for a in range(4, lim//4+1, 10) for b in range(a, lim//a+1, 10)))
%o A347253 print(aupto(1660)) # _Michael S. Branicky_, Aug 24 2021
%Y A347253 Cf. A017341 (supersequence), A053742 (ending with 5), A139245 (ending with 2), A324297 (ending with 6), A346950 (ending with 3), A347254, A347255.
%K A347253 nonn,base
%O A347253 1,1
%A A347253 _Stefano Spezia_, Aug 24 2021