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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.

A180528 Primes that become a different prime under the mapping 1 <=> 5.

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%I A180528 #11 Oct 29 2023 16:09:55
%S A180528 13,19,53,59,103,109,163,193,199,313,353,503,509,563,593,599,613,619,
%T A180528 653,659,1009,1019,1039,1087,1103,1117,1163,1237,1279,1297,1303,1399,
%U A180528 1453,1459,1483,1553,1559,1567,1579,1597,1613,1619,1669,1693,1783,1867
%N A180528 Primes that become a different prime under the mapping 1 <=> 5.
%H A180528 Robert Price, <a href="/A180528/b180528.txt">Table of n, a(n) for n = 1..2200</a>
%H A180528 <a href="/index/Pri#primes">Index to Primes</a>, Primes that become a different prime under some mapping.
%t A180528 fQ[n_] := Block[{id = IntegerDigits@n}, (MemberQ[id, 1] || MemberQ[id, 5]) && PrimeQ[ FromDigits[ id /. {1 -> 5, 5 -> 1}] ]]; Select[ Prime@ Range@ 300, fQ]
%Y A180528 Cf. A171024, A175791, A180517 thru A180559, A175789, A180560, A180561.
%K A180528 base,nonn
%O A180528 1,1
%A A180528 _Zak Seidov_ and _Robert G. Wilson v_, Sep 09 2010