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 A020863 #21 Jul 08 2025 07:56:42 %S A020863 3,4,5,9,4,3,1,6,1,8,6,3,7,2,9,7,2,5,6,1,9,9,3,6,3,0,4,6,7,2,5,7,9,2, %T A020863 9,5,8,7,0,3,2,3,1,5,2,5,6,8,1,7,6,8,0,7,1,3,1,2,8,0,1,6,4,5,7,2,6,3, %U A020863 3,0,6,1,9,7,2,0,0,1,8,3,5,2,7,0,9,4,9,1,2,9,9,2,8,6,9,0,0,4,8 %N A020863 Decimal expansion of log_2(11). %H A020863 Vincenzo Librandi, <a href="/A020863/b020863.txt">Table of n, a(n) for n = 1..1000</a> %H A020863 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a> %t A020863 RealDigits[Log[2,11],10,120][[1]] (* _Harvey P. Dale_, Nov 05 2011 *) %o A020863 (PARI) log(11)/log(2) \\ _Charles R Greathouse IV_, Aug 06 2020 %Y A020863 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), this sequence, A020864 (m=12), A152590 (m=13), A154462 (m=14), A154540 (m=15), A154847 (m=17), A154905 (m=18), A154995 (m=19), A155172 (m=20), A155536 (m=21), A155693 (m=22), A155793 (m=23), A155921 (m=24). %K A020863 nonn,cons %O A020863 1,1 %A A020863 _N. J. A. Sloane_ %E A020863 Definition improved by _J. Lowell_, May 03 2014