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 A366956 #24 Aug 25 2024 12:54:38 %S A366956 3,15,23,53,79,1767,2325,2553,8355,12707,13377,17265,30165,45807, %T A366956 65773,98981 %N A366956 Numbers k such that 3^k*k^3 - 2 is a prime. %t A366956 Select[Range[3000], PrimeQ[3^#*#^3 - 2] &] (* _Amiram Eldar_, Oct 30 2023 *) %o A366956 (Magma) [k: k in [1..500] | IsPrime(3^k*k^3-2)]; %Y A366956 Cf. A058780, A058781. %K A366956 nonn,more %O A366956 1,1 %A A366956 _Juri-Stepan Gerasimov_, Oct 30 2023 %E A366956 a(10)-a(12) from _Amiram Eldar_, Oct 30 2023 %E A366956 a(13)-a(14) from _Hugo Pfoertner_, Oct 31 2023 %E A366956 a(15) from _Michael S. Branicky_, Nov 04 2023 %E A366956 a(16) from _Michael S. Branicky_, Aug 25 2024