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 A364076 #18 Feb 16 2025 08:34:06 %S A364076 3,29,51,7824,15456,22614,28312,47014,68835 %N A364076 Numbers k such that (12^k - 1)^2 - 2 is prime. %C A364076 Such primes are sometimes called Carol primes of base 12. %H A364076 Prime-Wiki, <a href="https://www.rieselprime.de/ziki/Carol-Kynea_prime">Carol-Kynea prime</a>. %H A364076 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/Near-SquarePrime.html">Near-Square Prime</a>. %t A364076 Select[Range[1500],PrimeQ[(12^#-1)^2-2]&] (* _James C. McMahon_, Jan 04 2024 *) %o A364076 (PARI) for(k=1,1200,ispseudoprime((12^k-1)^2-2)&&print1(k,", ")) %Y A364076 Cf. A091515 (b=2), A100901 (b=6), A100903 (b=10), A100905 (b=14), A364078 (b=18), A364080 (b=20), A100907 (b=22). %Y A364076 Cf. A364077 %K A364076 nonn,hard,more %O A364076 1,1 %A A364076 _Jeppe Stig Nielsen_, Jul 03 2023