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 A032864 #18 Aug 22 2021 09:21:18
%S A032864 0,1,2,3,4,5,6,7,8,9,18,19,27,28,29,36,37,38,39,45,46,47,48,49,54,55,
%T A032864 56,57,58,59,63,64,65,66,67,68,69,72,73,74,75,76,77,78,79,82,83,84,85,
%U A032864 86,87,88,89,163,164,165,166,167,168,169,170,173
%N A032864 Numbers whose base-9 representation Sum_{i=0..m} d(i)*9^i has d(m) > d(m-1) < d(m-2) > ...
%Y A032864 Cf. A007095.
%Y A032864 Different from A032888.
%Y A032864 Cf. A032858..A032865 for bases 3..10.
%Y A032864 Cf. A306106..A306111 and A297147 for bases 3..9 and 10.
%K A032864 nonn,base
%O A032864 1,3
%A A032864 _Clark Kimberling_
%E A032864 a(1)=0 inserted by _Georg Fischer_, Dec 18 2020