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%I #4 Jul 13 2017 21:27:21
%S 151,2504901671,664565853951271,3091650738175271,26582634158079271,
%T 126757680265215271,142299187144047333874073599271,
%U 546216992715109618958387336810111087297326406997164406744285183999999999271
%N Primes of the form k!3-729, where k!3 is the triple factorial number (A007661).
%H Robert Price, <a href="/A289821/b289821.txt">Table of n, a(n) for n = 1..13</a>
%H Henri & Renaud Lifchitz, <a href="http://www.primenumbers.net/prptop/searchform.php?form=n3-729&action=Search">PRP Records.Search for n!3-729.</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>
%H OpenPFGW Project, <a href="http://sourceforge.net/projects/openpfgw/">Primality Tester</a>
%t MultiFactorial[n_, k_] := If[n<1, 1, n*MultiFactorial[n-k, k]];
%t Select[Table[MultiFactorial[i, 3] - 729, {i, 11, 100}], PrimeQ[#]&]
%Y Cf. A247466.
%K nonn
%O 1,1
%A _Robert Price_, Jul 12 2017