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 A329166 #8 Apr 03 2023 10:36:13 %S A329166 7,9,13,15,17,29,31,35,39,105,109,147,173,239,287,293,505,711,837,947, %T A329166 1015,1025,1977,2917,4035,4935,5935,7693,10911,11367,12029,14155, %U A329166 15221,17921,17961,20521,23053,32821,45147,45351,68057,78315 %N A329166 Numbers k such that k![4] - 16 is prime, where k![4] = A007662(k) = quadruple factorial. %C A329166 a(43) > 10^5. %C A329166 The first 5 primes associated with this sequence are: 5, 29, 569, 3449, 9929. %H A329166 C. K. Caldwell, The Prime Glossary, <a href="https://t5k.org/glossary/page.php/MultifactorialPrime.html">multifactorial prime</a> %H A329166 C. Caldwell and H. Dubner (Eds): <a href="https://t5k.org/lists/top_ten/">The top ten prime numbers: from the unpublished collections of R. Ondrejka</a> (May 2001), Table 21 F, p. 75. %H A329166 Ken Davis, <a href="http://mfprimes.free-dc.org">Status of Search for Multifactorial Primes</a>. %H A329166 Joe McLean, <a href="http://web.archive.org/web/20091027034731/http://uk.geocities.com/nassarawa%40btinternet.com/probprim2.htm">Interesting Sources of Probable Primes</a> %t A329166 MultiFactorial[n_, k_] := If[n < 1, 1, n*MultiFactorial[n - k, k]]; %t A329166 Select[Range[1000], (x = MultiFactorial[#, 4] - 16; x > 0 && PrimeQ[x]) &] %Y A329166 Cf. A007662, A283553. %K A329166 nonn %O A329166 1,1 %A A329166 _Robert Price_, Nov 06 2019