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 A095150 #20 Jul 28 2024 06:00:11 %S A095150 5,11,59,1621,821647,104484802069,870566678511500413589 %N A095150 a(n) = prime(2^(2^n) + 1). %C A095150 The k-th prime where k is the n-th Fermat number. %H A095150 Andrew Booker, <a href="https://t5k.org/nthprime/index.php#n-th">The Nth Prime Page</a>. %F A095150 From _Amiram Eldar_, Jul 11 2024: (Start) %F A095150 a(n) = A000040(A000215(n)). %F A095150 a(n) = A151800(A095124(n)). (End) %e A095150 a(2) = prime(2^(2^2)+1) = prime(17) = 59. %o A095150 (PARI) f(n) = for(x=1,n,print1(prime(2^2^x+1)",")) %Y A095150 Cf. A000040, A000215, A151800, A095124. %K A095150 nonn,more %O A095150 0,1 %A A095150 _Cino Hilliard_, Jun 20 2004 %E A095150 a(5)-a(6) from _Amiram Eldar_, Jul 11 2024