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 A035063 #21 Sep 08 2022 08:44:52 %S A035063 0,1,2,4,5,6,8,9,10,12,16,17,18,21,22,24,25,32,40,41,49,52,53,56,73,78 %N A035063 Numbers n such that 2^n does not contain the digit 8 (probably finite). %C A035063 No additional terms up to 50000. [_Harvey P. Dale_, Apr 12 2011] %t A035063 Select[Range[0, 50000], DigitCount[2^#, 10, 8]==0 &] (* _Harvey P. Dale_, Apr 12 2011 *) %o A035063 (Magma) [n: n in [0..1000] | not 8 in Intseq(2^n) ]; // _Vincenzo Librandi_, May 06 2015 %Y A035063 Cf. similar sequences listed in A035064. %K A035063 nonn,base %O A035063 1,3 %A A035063 _Patrick De Geest_, Nov 15 1998 %E A035063 Initial 0 added and Mathematica code adapted by _Vincenzo Librandi_, May 06 2015