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 A166728 #13 Jun 26 2021 09:17:34
%S A166728 6,26,36,46,56,66,76,86,96,106,126,136,146,156,166,176,186,196,206,
%T A166728 226,236,246,256,266,276,286,296,306,326,336,346,356,366,376,386,396,
%U A166728 406,426,436,446,456,466,476,486,496,506,526,536,546,556,566,576,586,596
%N A166728 Positive integers with English names ending in "x".
%H A166728 <a href="/index/Rec#order_10">Index entries for linear recurrences with constant coefficients</a>, signature (1,0,0,0,0,0,0,0,1,-1).
%F A166728 A017341 MINUS {n | n = 16 mod 100}.
%F A166728 From _Robert Israel_, Jul 01 2018: (Start)
%F A166728 a(n+9) = a(n)+100.
%F A166728 G.f.: x*(6+20*x+10*x^2+10*x^3+10*x^4+10*x^5+10*x^6+10*x^7+10*x^8+4*x^9)/(1-x-x^9+x^10). (End)
%e A166728 Fifty-six (56) is a term; sixteen (16) is not a term (but is a term of A060228).
%p A166728 seq(seq(6+10*i+100*j,i=[0,$2..9]),j=0..10); # _Robert Israel_, Jul 01 2018
%t A166728 Rest@ CoefficientList[Series[x (6 + 20 x + 10 x^2 + 10 x^3 + 10 x^4 + 10 x^5 + 10 x^6 + 10 x^7 + 10 x^8 + 4 x^9)/(1 - x - x^9 + x^10), {x, 0, 54}], x] (* _Michael De Vlieger_, Jul 01 2018 *)
%o A166728 (Python)
%o A166728 def agen(lim): yield from (k for k in range(6, lim+1, 10) if k%100 != 16)
%o A166728 print([an for an in agen(600)]) # _Michael S. Branicky_, Jun 26 2021
%Y A166728 Cf. A017341, A166726, A166727, A166729, A166730, A166731, A059093, A060228.
%K A166728 easy,nonn,word
%O A166728 1,1
%A A166728 _Rick L. Shepherd_, Oct 20 2009