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 A077771 #32 Feb 16 2025 08:32:48
%S A077771 5,9,8,9,5,8,1,6,7,5,3,8,4,3,3,9,9,2,5,0,0,1,7,2,2,1,7,9,2,9,4,3,6,5,
%T A077771 9,0,9,7,8,2,0,8,7,6,8,6,7,6,1,0,5,9,3,6,7,5,4,7,8,6,0,7,5,4,7,9,6,5,
%U A077771 1,8,4,1,9,5,2,8,0,8,4,2,0,5,5,4,0,7,2,1,1,0,8,0,5,2,7,9,6,4,1,5,7
%N A077771 Decimal value of the ternary Champernowne constant.
%C A077771 The first 99 digits form a prime. - _Jonathan Vos Post_, Nov 11 2004
%C A077771 This constant is 3-normal. - _Charles R Greathouse IV_, Feb 06 2015
%H A077771 Paolo Xausa, <a href="/A077771/b077771.txt">Table of n, a(n) for n = 0..10000</a>
%H A077771 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/TernaryChampernowneConstant.html">Ternary Champernowne Constant</a>
%e A077771 0.598958167538433992500172217929...
%t A077771 First[RealDigits[ChampernowneNumber[3], 10, 100]] (* _Paolo Xausa_, May 03 2024 *)
%o A077771 (PARI) A077771(b=3,t=1.,s=b)={sum(n=1, default(realprecision)*2.303\log(b)+1, n<s||s*=b; n*t/=s)} \\ First optional arg allows to get C[b] for other bases. - _M. F. Hasler_, Oct 25 2019
%Y A077771 Cf. A054635 (base 3 digits), A077772 (continued fraction).
%Y A077771 Cf. A030190, A066716, A066717: binary digits, decimals and continued fraction of the binary Champernowne constant; A033307: decimal Champernowne constant.
%K A077771 nonn,cons
%O A077771 0,1
%A A077771 _Eric W. Weisstein_, Nov 15 2002