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 A235151 #11 Sep 08 2022 08:46:06
%S A235151 39,48,57,66,75,84,93,129,138,147,156,165,174,183,192,219,228,237,246,
%T A235151 255,264,273,282,291,309,318,327,336,345,354,363,372,381,390,408,417,
%U A235151 426,435,444,453,462,471,480,507,516,525,534,543,552,561,570,606
%N A235151 Numbers whose sum of digits is 12.
%C A235151 A007953(a(n)) = 12; number of repdigits = #{66,444,3333,222222,1^12} = A242627(12) = 5. - _Reinhard Zumkeller_, Jul 17 2014
%H A235151 Vincenzo Librandi, <a href="/A235151/b235151.txt">Table of n, a(n) for n = 1..1000</a>
%t A235151 Select[Range[2000], Total[IntegerDigits[#]]==12&]
%o A235151 (Magma) [n: n in [1..1000] | &+Intseq(n) eq 12];
%o A235151 (Haskell)
%o A235151 a235151 n = a235151_list !! (n-1)
%o A235151 a235151_list = filter ((== 12) . a007953) [0..]
%o A235151 -- _Reinhard Zumkeller_, Jul 17 2014
%Y A235151 Cf. A052217 - A052224, A143164, A166311, A166370, A166459.
%Y A235151 Cf. A011557 (1), A052216 (2), A052217 (3), A052218 (4), A052219 (5), A052220 (6), A052221 (7), A052222 (8), A052223 (9), A052224 (10), A166311 (11), A143164 (13), A235225(14), A235226 (15), A235227 (16), A166370 (17), A235228 (18), A166459 (19), A235229 (20).
%Y A235151 A242614, A242627.
%K A235151 nonn,base
%O A235151 1,1
%A A235151 _Vincenzo Librandi_, Jan 04 2014