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 A343715 #9 Jun 25 2021 01:41:01 %S A343715 353,373,727,757,11311,13331,31013,31513,33533,37273,37573,39293, %T A343715 71317,71917,73237,77977,79397,97379,97579,1175711,1178711,1317131, %U A343715 1335331,1338331,1513151,1572751,1737371,1793971,1917191,1993991,1995991,3103013,3106013,3127213 %N A343715 Palindromic primes of the form p//q//reverse(p), where p, q, and reverse(p) are primes. %C A343715 If reverse(p) were allowed to be nonprime, the result would be sequence A343714, which includes such terms as 19391. %e A343715 353 is a term because it is a palindromic prime (A002385) and is the concatenation of 3 (a prime), 5 (a palindromic prime), and 3 (the reverse of 3, and also a prime). %e A343715 31513 is a term in two ways: as the concatenation 3//151//3 and as the concatenation 31//5//13. %e A343715 7392937 is a term in three ways: 7//39293//7, 73//929//37, and 739//2//937. %Y A343715 Cf. A002385, A045336, A177678, A343714. %K A343715 nonn,base %O A343715 1,1 %A A343715 _Jon E. Schoenfield_, May 08 2021