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 A155691 #10 Aug 17 2023 16:37:48 %S A155691 9,7,0,9,8,6,4,6,2,7,5,8,0,6,6,7,4,5,4,2,0,9,9,1,8,3,5,6,9,3,4,5,0,9, %T A155691 8,3,6,1,6,4,5,3,7,0,5,7,6,7,0,5,4,8,7,8,5,3,3,5,3,7,7,0,8,5,2,5,8,5, %U A155691 4,1,1,7,8,7,8,1,2,6,2,9,5,0,7,1,7,1,6,2,5,6,1,7,4,6,5,9,1,5,1 %N A155691 Decimal expansion of log_23 (21). %H A155691 Vincenzo Librandi, <a href="/A155691/b155691.txt">Table of n, a(n) for n = 0..1000</a> %H A155691 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a> %e A155691 .97098646275806674542099183569345098361645370576705487853353... %t A155691 RealDigits[Log[23, 21], 10, 100][[1]] (* _Vincenzo Librandi_, Sep 09 2013 *) %Y A155691 Inverse of A155909. %Y A155691 Cf. decimal expansion of log_23(m): A152882 (m=2), A153099 (m=3), A153163 (m=4), A153457 (m=5), A153613 (m=6), A153735 (m=7), A154006 (m=8), A154102 (m=9), A154173 (m=10), A154194 (m=11), A154215 (m=12), A154460 (m=13), A154527 (m=14), A154719 (m=15), A154845 (m=16), A154903 (m=17), A154993 (m=18), A155166 (m=19), A155534 (m=20), this sequence, A155791 (m=22), A156030 (m=24). %K A155691 nonn,cons %O A155691 0,1 %A A155691 _N. J. A. Sloane_, Oct 30 2009