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 A334094 #6 Apr 18 2020 19:44:54 %S A334094 43,47,59,67,71,79,107,109,131,149,151,157,167,179,181,227,233,239, %T A334094 251,281,293,307,313,337,433,443,521,593,601,613,673,809,821,823,881, %U A334094 929,953,971,977,1021,1201,1217,1249,1637,1697,1931,2081,2113,2309,2657,2689,2741,2789,2819,3203,3209,3299,3457,3469,3593,3617,3847,3881,4001 %N A334094 Primes p for which A329697(p) == 4. %C A334094 Primes p of the form of the form A334103(n) + 1, for some n >= 1. %H A334094 Antti Karttunen, <a href="/A334094/b334094.txt">Table of n, a(n) for n = 1..330; all terms < 2^31</a> %o A334094 (PARI) %o A334094 A329697(n) = if(!bitand(n,n-1),0,1+A329697(n-(n/vecmax(factor(n)[, 1])))); %o A334094 isA334094(n) = (isprime(n)&&(4==A329697(n))); %Y A334094 Primes in A334104. %Y A334094 Cf. A000040, A010051, A052126, A171462, A329697, A334103. %Y A334094 Cf. also A019434, A334092, A334093, A334095, A334096. %K A334094 nonn %O A334094 1,1 %A A334094 _Antti Karttunen_, Apr 14 2020