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A289736 Primes of the form k!6-36, where k!6 is the sextuple factorial number (A085158). 1

%I #5 Jul 11 2017 07:41:32

%S 19,1693,43189,5745471106339,350473737488839,

%T 40054638345554502541724271794339,

%U 78051469646106142515367459125313984339,268110968591974440568718596462044971839

%N Primes of the form k!6-36, where k!6 is the sextuple factorial number (A085158).

%H Robert Price, <a href="/A289736/b289736.txt">Table of n, a(n) for n = 1..9</a>

%H Henri & Renaud Lifchitz, <a href="http://www.primenumbers.net/prptop/searchform.php?form=n6-36&amp;action=Search">PRP Records.Search for n!6-36.</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, 6] - 36, {i, 10, 100}], PrimeQ[#]&]

%Y Cf. A289700.

%K nonn

%O 1,1

%A _Robert Price_, Jul 10 2017

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Last modified June 15 22:50 EDT 2024. Contains 373412 sequences. (Running on oeis4.)