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 A166459 #17 Sep 08 2022 08:45:48 %S A166459 199,289,298,379,388,397,469,478,487,496,559,568,577,586,595,649,658, %T A166459 667,676,685,694,739,748,757,766,775,784,793,829,838,847,856,865,874, %U A166459 883,892,919,928,937,946,955,964,973,982,991,1099,1189,1198,1279,1288 %N A166459 Numbers whose sum of digits is 19. %C A166459 A007953(a(n)) = 19; number of repdigits = A242627(19) = 1. - _Reinhard Zumkeller_, Jul 17 2014 %H A166459 Vincenzo Librandi, <a href="/A166459/b166459.txt">Table of n, a(n) for n = 1..1000</a> %t A166459 Select[Range[1500],Total[IntegerDigits[#]]==19&] (* _Harvey P. Dale_, Jul 19 2011 *) %o A166459 (Magma) [n: n in [1..1500] | &+Intseq(n) eq 19]; // _Vincenzo Librandi_, Sep 13 2013 %o A166459 (Haskell) %o A166459 a166459 n = a166459_list !! (n-1) %o A166459 a166459_list = filter ((== 19) . a007953) [0..] %o A166459 -- _Reinhard Zumkeller_, Jul 17 2014 %Y A166459 Cf. A011557 (1), A052216 (2), A052217 (3), A052218 (4), A052219 (5), A052220 (6), A052221 (7), A052222 (8), A052223 (9), A052224 (10), A166311 (11), A235151 (12), A143164 (13), A235225(14), A235226 (15), A235227 (16), A166370 (17), A235228 (18), A235229 (20). %Y A166459 Cf. A242614, A242627. %K A166459 nonn,base,easy %O A166459 1,1 %A A166459 _Vincenzo Librandi_, Oct 14 2009