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 A004600 #25 Dec 08 2019 11:18:49 %S A004600 2,6,4,1,5,5,7,3,6,4,1,8,8,3,6,4,2,5,8,6,5,2,8,8,3,7,8,5,2,1,5,4,8,7, %T A004600 4,0,1,6,8,8,4,7,2,3,6,3,2,6,6,8,6,2,1,6,3,0,4,5,2,8,5,2,1,2,2,1,0,0, %U A004600 5,4,3,3,5,3,4,8,2,4,4,4,5,5,6,6,8,2,5,8,2,0,4,4 %N A004600 Expansion of e in base 9. %H A004600 G. C. Greubel, <a href="/A004600/b004600.txt">Table of n, a(n) for n = 1..10000</a> %t A004600 First@RealDigits[N[E, 120], 9] (* _Vincenzo Librandi_, Jan 23 2016 *) %t A004600 RealDigits[E,9,120][[1]] (* _Harvey P. Dale_, Dec 08 2019 *) %Y A004600 Expansion of e in base b: A004593 (b=2), A004594 (b=3), A004595 (b=4), A004596 (b=5), A004597 (b=6), A004598 (b=7), A004599 (b=8), this sequence (b=9), A001113 (b=10), A170873 (b=16). - _Jason Kimberley_, Dec 05 2012 %K A004600 nonn,base,cons %O A004600 1,1 %A A004600 _N. J. A. Sloane_ %E A004600 a(64) onwards corrected and more terms from _Sean A. Irvine_, Jan 22 2016