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 A265043 #12 Aug 12 2019 17:41:53 %S A265043 10,12,17,115,971,1364,9711 %N A265043 The n-th Champernowne prime (A176942) is found by concatenating the successive digits of the numbers 1,2,3,...,a(n) and possibly dropping some of final digits of a(n). %e A265043 The third Champernowne prime A176942(3) = 123456789101112131415161 is obtained by concatenating the digits of the numbers 1,2,3,4,...,17, and then dropping the final digit; thus a(3) = 17. %Y A265043 See A176942 for the Champernowne primes, A071620 for number of digits. %Y A265043 See also A007908. %K A265043 nonn,more,base %O A265043 1,1 %A A265043 _N. J. A. Sloane_, Dec 26 2015