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 A084352 #6 Dec 15 2017 17:36:21 %S A084352 2,2,3,1,1,1,1,1,1,2,0,0,0,0,0,0,1,0,1,0,1,1,1,0,1,0,1,1,0,0,0,1,1,0, %T A084352 1,0,1,1,0,0,1,0,1,2,0,1,2,0,0,1,1,1,0,0,1,0,1,0,0,0,0,0,0,1,1 %N A084352 Minimum digit out of both prime factors of palindromic brilliant numbers. %C A084352 Conjecture: a(n) is never greater than 3. %e A084352 a(9)=2 because the factors of the 9th palindromic brilliant number 989 are %e A084352 23*43 and the minimum digit is 2. %Y A084352 Cf. A078972, A084189. %K A084352 base,nonn %O A084352 0,1 %A A084352 _Jason Earls_, Jun 22 2003