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 A158237 #17 Aug 08 2025 03:54:09 %S A158237 1,1,3,4,7,12,19,13,52,3,12,21,27,127,7,48,21,75,19,108,28,147,97,192, %T A158237 237,84,243,63,300,76,201,189,112,109,58,3,388,175,283,247,336,171, %U A158237 252,343,304,7,448,436,12,475,567,13,453,57,684 %N A158237 The repdigit for the numbers in A158235. %C A158237 Which "digits" are allowed? For instance, do we know that 2, 5, and 9 never appear? %H A158237 Michael De Vlieger, <a href="/A158237/b158237.txt">Table of n, a(n) for n = 1..100</a> (first 75 terms from Michel Marcus). %t A158237 (* See A158235. *) %Y A158237 Cf. A158235, A158236. %K A158237 nonn %O A158237 1,3 %A A158237 _T. D. Noe_, Mar 14 2009