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 A063452 #17 Sep 08 2022 08:45:03
%S A063452 2,6,14,30,38,42,62,66,70,74,78,102,130,138,158,190,194,222,238,278,
%T A063452 282,310,314,366,390,398,418,422,430,438,442,458,462,498,510,542,570,
%U A063452 598,606,614,618,642,646,658,662,674,682,734,742,758,770,786,798,822
%N A063452 Numbers k such that k - mu(k) is prime.
%H A063452 Harry J. Smith, <a href="/A063452/b063452.txt">Table of n, a(n) for n = 1..1000</a>
%t A063452 Select[Range[1, 1000], PrimeQ[# - MoebiusMu[#]] &] (* _Vincenzo Librandi_, Jun 26 2018 *)
%o A063452 (PARI) ok(m)={isprime(m - moebius(m))}
%o A063452 (Magma) [n: n in [1..1000] |IsPrime(n - MoebiusMu(n))]; // _Vincenzo Librandi_, Jun 26 2018
%Y A063452 Cf. A063015, A062304.
%K A063452 nonn
%O A063452 1,1
%A A063452 _Jason Earls_, Jul 25 2001