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 A143532 #12 Feb 16 2025 08:33:08 %S A143532 0,1,1,1,6,1,1,1,1,1,1,1,1,1,1,1,1,2,166,1,1,1,2,1,1,1,1,1,1,1,1,1,1, %T A143532 2,1,3,1,2,1,2,2504,1,1,1,1,1,1,2,1,1,1,1,1,1,1,1,1,3,1,1,1,1,1,1,1,1, %U A143532 1,1,1,1,2,1,1,1,1,1,2,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 %N A143532 Number of decimal digits in the n-th term of the continued fraction of the (base-10) Champernowne constant. %H A143532 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/ChampernowneConstantContinuedFraction.html">Champernowne Constant Continued Fraction</a> %e A143532 [0; 8, 9, 1, 149083, 1, 1, 1, 4, 1, 1, 1, 3, 4, 1, 1, 1, 15, 4575401113910310764836466282429561185996039397104575550006620043930902626592563149379532077471286563138641209375503552094607183089984575801469863148833592141783010987, 6, ...] %K A143532 nonn,base %O A143532 0,5 %A A143532 _Eric W. Weisstein_, Aug 22 2008