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 A385201 #8 Jun 27 2025 16:11:57 %S A385201 3,5,11,131,313,94349,1123211,1212121,1360631,1422241,3075703,3293923, %T A385201 3400043,3447443,9711179,9852589,100161001,101171101,108505801, %U A385201 109111901,13929592931,14125852141,14209390241,14895559841,14986568941,15911711951,16172327161,16257475261,16727672761 %N A385201 Palindromic primes indexed by palindromic primes. %F A385201 a(n) = A002385(A002385(n)). %e A385201 a(3) = 11 because a(3) = A002385(A002385(3)) = A002385(5) = 11. %Y A385201 Subsequence of A002385. %Y A385201 Cf. A000040, A002113. %K A385201 nonn,base,easy %O A385201 1,1 %A A385201 _Alexander Yutkin_, Jun 21 2025