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 A180520 #11 Oct 29 2023 01:52:38
%S A180520 53,101,107,151,157,503,509,523,541,547,557,571,701,751,809,859,1009,
%T A180520 1031,1049,1097,1103,1153,1409,1459,1531,1549,1559,1597,1607,1657,
%U A180520 1709,1759,1901,1951,2039,2053,2503,2539,2609,2659,2801,2851,2903,2953,3011
%N A180520 Primes that become a different prime under the mapping 0 <=> 5.
%H A180520 Robert Price, <a href="/A180520/b180520.txt">Table of n, a(n) for n = 1..2172</a>
%H A180520 <a href="/index/Pri#primes">Index to Primes</a>, Primes that become a different prime under some mapping.
%t A180520 fQ[n_] := Block[{id = IntegerDigits@n}, (MemberQ[id, 0] || MemberQ[id, 5]) && PrimeQ[ FromDigits[ id /. {0 -> 5, 5 -> 0}] ]]; Select[ Prime@ Range@ 500, fQ]
%Y A180520 Cf. A171023, A175791, A180517 thru A180559, A175789, A180560, A180561.
%K A180520 base,nonn
%O A180520 1,1
%A A180520 _Zak Seidov_ and _Robert G. Wilson v_, Sep 09 2010