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 A146029 #19 May 03 2019 08:40:08 %S A146029 0,1,2,3,4,5,6,7,8,17,18 %N A146029 Numbers that can be written from base 2 to base 17 using only the digits 0 to 8 (conjectured to be complete). %C A146029 It is a plausible conjecture that there are no more terms, but this has not been proved. - _N. J. A. Sloane_, Nov 17 2017 %H A146029 Stuart A. Burrell, Han Yu, <a href="https://arxiv.org/abs/1905.00832">Digit expansions of numbers in different bases</a>, arXiv:1905.00832 [math.NT], 2019. %t A146029 Select[Range[0, 10^5], Function[n, Times @@ Boole@ Map[Max@ IntegerDigits[n, #] <= 8 &, Range[2, 17]] > 0]] (* _Michael De Vlieger_, Aug 15 2016 *) %Y A146029 Cf. A146025, A146026, A146027, A146028, A131646, A275600. %K A146029 nonn,base %O A146029 1,3 %A A146029 _Daniel Mondot_, Nov 02 2008