A155829 - OEIS

%I #11 Aug 21 2023 10:00:45

%S 1,4,2,7,0,2,4,9,1,5,1,0,0,1,3,5,5,5,3,7,0,1,8,1,5,8,8,2,4,7,4,6,0,3,

%T 9,4,1,3,8,1,5,9,0,8,1,8,5,2,5,2,4,4,8,8,3,5,8,6,7,5,5,8,8,3,8,2,7,3,

%U 9,2,5,7,2,7,4,9,7,4,1,7,0,0,7,6,6,2,1,6,4,5,7,7,1,6,0,9,0,1,9

%N Decimal expansion of log_9 (23).

%H Vincenzo Librandi, <a href="/A155829/b155829.txt">Table of n, a(n) for n = 1..1000</a>

%H <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>

%e 1.4270249151001355537018158824746039413815908185252448835867...

%t RealDigits[Log[9, 23], 10, 100][[1]] (* _Vincenzo Librandi_, Sep 01 2013 *)

%o (PARI) default(realprecision, 100); log(23)/log(9) \\ _G. C. Greubel_, Sep 01 2018

%o (Magma) SetDefaultRealField(RealField(100)); Log(23)/Log(9); // _G. C. Greubel_, Sep 01 2018

%Y Cf. decimal expansion of log_9(m): A152747 (m=2), A153205 (m=5), 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), this sequence, A155976 (m=24).

%K nonn,cons

%O 1,2

%A _N. J. A. Sloane_, Oct 30 2009