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 A180533 #11 Oct 28 2023 23:49:52
%S A180533 2,3,127,137,211,227,311,337,421,431,829,839,1021,1031,1201,1231,1237,
%T A180533 1301,1321,1327,1429,1439,1627,1637,2011,2027,2089,2131,2207,2221,
%U A180533 2239,2309,2339,2351,2357,2371,2399,2467,2539,2557,2617,2621,2659,2671,2677
%N A180533 Primes that become a different prime under the mapping 2 <=> 3.
%H A180533 Robert Price, <a href="/A180533/b180533.txt">Table of n, a(n) for n = 1..8672</a>
%H A180533 <a href="/index/Pri#primes">Index to Primes</a>, Primes that become a different prime under some mapping.
%t A180533 fQ[n_] := Block[{id = IntegerDigits@n}, (MemberQ[id, 2] || MemberQ[id, 3]) && PrimeQ[ FromDigits[ id /. {2 -> 3, 3 -> 2}] ]]; Select[ Prime@ Range@ 400, fQ]
%Y A180533 Cf. A171018, A175791, A180517 thru A180559, A175789, A180560, A180561.
%K A180533 base,nonn
%O A180533 1,1
%A A180533 _Zak Seidov_ and _Robert G. Wilson v_, Sep 09 2010