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%I #8 Aug 21 2023 09:50:13
%S 4,3,9,2,3,1,7,4,2,2,7,7,8,7,6,0,2,8,8,8,9,5,7,0,8,2,6,1,1,7,9,6,4,7,
%T 3,1,7,4,0,0,8,4,1,0,3,3,6,5,8,6,2,1,8,4,4,1,3,3,0,4,4,3,7,8,6,1,1,4,
%U 1,9,0,7,6,6,5,6,5,5,1,5,4,9,0,2,0,1,4,1,4,7,4,0,8,8,2,9,9,0,2
%N Decimal expansion of log_2 (21).
%H Vincenzo Librandi, <a href="/A155536/b155536.txt">Table of n, a(n) for n = 1..1000</a>
%H <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>
%e 4.3923174227787602888957082611796473174008410336586218441330...
%t RealDigits[Log[2, 21], 10, 100][[1]] (* _Vincenzo Librandi_, Aug 29 2013 *)
%Y Cf. decimal expansion of log_2(m): A020857 (m=3), A020858 (m=5), A020859 (m=6), A020860 (m=7), A020861 (m=9), A020862 (m=10), A020863 (m=11), A020864 (m=12), A152590 (m=13), A154462 (m=14), A154540 (m=15), A154847 (m=17), A154905 (m=18), A154995 (m=19), A155172 (m=20), this sequence, A155693 (m=22), A155793 (m=23), A155921 (m=24).
%K nonn,cons
%O 1,1
%A _N. J. A. Sloane_, Oct 30 2009
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