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 A326833 #17 Oct 21 2019 15:12:55 %S A326833 1,10,19,28,37,46,55,64,73,82,91,100,109,118,127,136,145,154,163,172, %T A326833 181,190,208,217,226,235,244,253,262,271,280,307,316,325,334,343,352, %U A326833 361,370,406,415,424,433,442,451,460,505,514,523,532,541,550,604,613 %N A326833 Numbers whose sum of digits is a power of 10. %H A326833 Alois P. Heinz, <a href="/A326833/b326833.txt">Table of n, a(n) for n = 1..43758</a> (all terms with up to 9 digits) %p A326833 q:= n-> (m-> m>0 and m=10^ilog[10](m))(add(i, i=convert(n, base, 10))): %p A326833 select(q, [$1..1000])[]; %o A326833 (PARI) isok(n) = my(s=sumdigits(n), k); (s==1) || (s==10) || (ispower(s,,&k) && (k==10)); \\ _Michel Marcus_, Oct 21 2019 %Y A326833 Subsequence of A326806. %Y A326833 Cf. A007953, A017173, A028838, A052224, A328560. %K A326833 nonn,base %O A326833 1,2 %A A326833 _Alois P. Heinz_, Oct 20 2019