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 A235226 #14 Sep 08 2022 08:46:06
%S A235226 69,78,87,96,159,168,177,186,195,249,258,267,276,285,294,339,348,357,
%T A235226 366,375,384,393,429,438,447,456,465,474,483,492,519,528,537,546,555,
%U A235226 564,573,582,591,609,618,627,636,645,654,663,672,681,690,708,717,726,735
%N A235226 Numbers whose sum of digits is 15.
%C A235226 A007953(a(n)) = 15; number of repdigits = #{555,33333,1^15} = A242627(15) = 3. - _Reinhard Zumkeller_, Jul 17 2014
%H A235226 Vincenzo Librandi, <a href="/A235226/b235226.txt">Table of n, a(n) for n = 1..1000</a>
%t A235226 Select[Range[1000], Total[IntegerDigits[#]] == 15 &]
%o A235226 (Magma) [n: n in [1..1000] | &+Intseq(n) eq 15];
%o A235226 (Haskell)
%o A235226 a235226 n = a235226_list !! (n-1)
%o A235226 a235226_list = filter ((== 15) . a007953) [0..]
%o A235226 -- _Reinhard Zumkeller_, Jul 17 2014
%Y A235226 Cf. A052217 - A052224, A143164, A166311, A166370, A166459, A235227, A235229.
%Y A235226 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), A235227 (16), A166370 (17), A235228 (18), A166459 (19), A235229 (20).
%Y A235226 Cf. A242614, A242627.
%K A235226 nonn,base,easy
%O A235226 1,1
%A A235226 _Vincenzo Librandi_, Jan 05 2014