%I #11 Aug 14 2023 11:04:30
%S 5,2,8,6,3,3,9,4,6,8,1,9,4,4,8,0,6,4,6,3,6,0,5,5,2,5,3,0,5,9,1,1,9,9,
%T 1,4,0,3,8,9,6,5,1,3,1,3,3,6,7,0,0,3,8,6,4,5,9,1,7,5,6,6,1,0,7,0,4,3,
%U 8,2,8,5,1,0,2,1,2,2,5,2,5,6,8,6,9,8,0,3,9,8,9,0,1,3,6,3,9,9,8
%N Decimal expansion of log_21 (5).
%H Vincenzo Librandi, <a href="/A153455/b153455.txt">Table of n, a(n) for n = 0..1000</a>
%H <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>
%e .52863394681944806463605525305911991403896513133670038645917...
%t RealDigits[Log[21, 5], 10, 100][[1]] (* _Vincenzo Librandi_, Sep 06 2013 *)
%Y Cf. decimal expansion of log_21(m): A152825 (m=2), A153097 (m=3), A153131 (m=4), this sequence, A153611 (m=6), A153632 (m=7), A153895 (m=8), A154020 (m=9), A154171 (m=10), A154192 (m=11), A154213 (m=12), A154434 (m=13), A154499 (m=14), A154707 (m=15), A154839 (m=16), A154901 (m=17), A154977 (m=18), A155129 (m=19), A155532 (m=20), A155790 (m=22), A155909 (m=23), A156028 (m=24).
%K nonn,cons
%O 0,1
%A _N. J. A. Sloane_, Oct 30 2009