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 A180529 #11 Oct 29 2023 16:09:46 %S A180529 17,67,107,163,167,173,317,367,607,613,617,673,719,769,1153,1213,1229, %T A180529 1277,1367,1373,1427,1553,1613,1663,1697,1699,1709,1733,1823,1907, %U A180529 1949,1997,2113,2417,2467,2663,3137,3163,3167,3413,3463,3613,3617,3637,3719 %N A180529 Primes that become a different prime under the mapping 1 <=> 6. %H A180529 Robert Price, <a href="/A180529/b180529.txt">Table of n, a(n) for n = 1..2107</a> %H A180529 <a href="/index/Pri#primes">Index to Primes</a>, Primes that become a different prime under some mapping. %t A180529 fQ[n_] := Block[{id = IntegerDigits@n}, (MemberQ[id, 1] || MemberQ[id, 6]) && PrimeQ[ FromDigits[ id /. {1 -> 6, 6 -> 1}] ]]; Select[ Prime@ Range@ 550, fQ] %Y A180529 Cf. A171029, A175791, A180517 thru A180559, A175789, A180560, A180561. %K A180529 base,nonn %O A180529 1,1 %A A180529 _Zak Seidov_ and _Robert G. Wilson v_, Sep 09 2010