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 A032955 #41 Feb 12 2021 22:07:05
%S A032955 1,2,3,4,5,7,9,10,12,14,15,17,19,20,22,24,25,26,27,28,29,35,36,37,38,
%T A032955 39,45,46,47,48,49,50,51,52,53,54,60,61,62,63,64,70,71,72,73,74,75,76,
%U A032955 77,78,79,85,86,87,88,89,95,96,97,98,99,100,101
%N A032955 Numbers whose base-5 representation Sum_{i=0..m} d(i)*5^(m-i) has even d(i) for all odd i.
%H A032955 Sean A. Irvine, <a href="/A032955/b032955.txt">Table of n, a(n) for n = 1..10000</a>
%Y A032955 Cf. A007091 (numbers in base 5).
%K A032955 nonn,base
%O A032955 1,2
%A A032955 _Clark Kimberling_
%E A032955 Definition corrected by _Sean A. Irvine_, Nov 16 2020