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%I #8 Apr 03 2023 10:36:13
%S 11,13,41,45,59,85,141,283,357,419,713,1149,1353,1537,1669,2353,2389,
%T 2543,5147,5279,12801,30035,39421,46969,61077
%N Numbers k such that k![4] - 64 is prime, where k![4] = A007662(k) = quadruple factorial.
%C a(26) > 10^5.
%C The first 3 primes associated with this sequence are: 167, 521, 7579867420061.
%H C. K. Caldwell, The Prime Glossary, <a href="https://t5k.org/glossary/page.php/MultifactorialPrime.html">multifactorial prime</a>
%H 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The top ten prime numbers: from the unpublished collections of R. Ondrejka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 Ken Davis, <a href="http://mfprimes.free-dc.org">Status of Search for Multifactorial Primes</a>.
%H 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 MultiFactorial[n_, k_] := If[n < 1, 1, n*MultiFactorial[n - k, k]];
%t Select[Range[1000], (x = MultiFactorial[#, 4] - 64; x > 0 && PrimeQ[x]) &]
%Y Cf. A007662, A283553.
%K nonn
%O 1,1
%A _Robert Price_, Nov 07 2019