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 A153205 #13 Aug 21 2023 10:00:58 %S A153205 7,3,2,4,8,6,7,6,0,3,5,8,9,6,3,5,8,3,5,9,8,5,2,0,2,0,3,8,3,9,3,2,0,1, %T A153205 9,8,1,5,3,9,6,6,1,8,3,3,3,3,0,2,4,8,4,4,5,2,6,4,4,5,1,9,7,3,9,7,7,4, %U A153205 6,1,3,8,0,9,5,5,1,2,9,1,1,8,2,7,7,9,6,5,5,6,8,7,9,7,6,4,7,4,5 %N A153205 Decimal expansion of log_9 (5). %H A153205 Vincenzo Librandi, <a href="/A153205/b153205.txt">Table of n, a(n) for n = 0..1000</a> %H A153205 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a> %e A153205 .73248676035896358359852020383932019815396618333302484452644... %t A153205 RealDigits[Log[9, 5], 10, 100][[1]] (* _Vincenzo Librandi_, Sep 01 2013 *) %o A153205 (PARI) default(realprecision, 100); log(5)/log(9) \\ _G. C. Greubel_, Aug 31 2018 %o A153205 (Magma) SetDefaultRealField(RealField(100)); Log(5)/Log(9); // _G. C. Greubel_, Aug 31 2018 %Y A153205 Cf. decimal expansion of log_9(m): A152747 (m=2), this sequence, A153495 (m=6), A153619 (m=7), A153756 (m=8), A154160 (m=10), A154181 (m=11), A154202 (m=12), A154339 (m=13), A154469 (m=14), A154578 (m=15), A154859 (m=17), A154947 (m=18), A155061 (m=19), A155503 (m=20), A155676 (m=21), A155743 (m=22), A155829 (m=23), A155976 (m=24). %K A153205 nonn,cons %O A153205 0,1 %A A153205 _N. J. A. Sloane_, Oct 30 2009