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 A370572 #23 Feb 22 2024 20:21:02 %S A370572 84,1953,34560,7000485,354748446,77478704205,1878528135128, %T A370572 48398467146642 %N A370572 The smallest number which in base n requires 3 digit changes to convert k into a prime. %C A370572 Leading digits may be changed to 0. %C A370572 a(6)-a(9) converted from A133219. %C A370572 a(10) <= 977731833235239280 is also from A133219, but not proved minimal. %Y A370572 Cf. A133219, A186995, A322614, A370531. %K A370572 nonn,base,more %O A370572 2,1 %A A370572 _Michael S. Branicky_ and _Don N. Page_, Feb 22 2024