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 A075431 #8 Apr 20 2021 22:35:42
%S A075431 2,7,11,23,29,41,47,59,83,101,107,109,113,137,167,173,179,181,211,227,
%T A075431 229,257,263,281,317,331,347,353,359,373,383,401,409,433,463,467,479,
%U A075431 503,547,563,571,587,601,617,641,653,677,691,709,719,761,821,829,839,853
%N A075431 Primes of the form n+mu(n), where mu is the Moebius function (A008683).
%C A075431 Subsequence of A075430.
%H A075431 Andrew Howroyd, <a href="/A075431/b075431.txt">Table of n, a(n) for n = 1..10000</a>
%o A075431 (PARI) isok(p)={isprime(p) && (moebius(p+1) == -1 || moebius(p-1) == 1)} \\ _Andrew Howroyd_, Apr 20 2021
%Y A075431 Cf. A063015, A039787, A049097.
%K A075431 nonn
%O A075431 1,1
%A A075431 _Reinhard Zumkeller_, Sep 15 2002
%E A075431 Terms a(41) and beyond from _Andrew Howroyd_, Apr 20 2021