login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A289737 Primes of the form k!6-48, where k!6 is the sextuple factorial number (A085158). 1

%I #7 Jul 11 2017 07:41:41

%S 7,43,887,43177,21827527,894930527,1714167050058087577,

%T 46738795448742522077,345259481979861010937327,

%U 40054638345554502541724271794327,131181879631714694053764558690577,15873007435437477980505511601565577,595812745390123225308148542941328077

%N Primes of the form k!6-48, where k!6 is the sextuple factorial number (A085158).

%H Robert Price, <a href="/A289737/b289737.txt">Table of n, a(n) for n = 1..18</a>

%H Henri & Renaud Lifchitz, <a href="http://www.primenumbers.net/prptop/searchform.php?form=n6-48&amp;action=Search">PRP Records.Search for n!6-48.</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] - 48, {i, 11, 100}], PrimeQ[#]&]

%Y Cf. A289701.

%K nonn

%O 1,1

%A _Robert Price_, Jul 10 2017

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 24 15:57 EDT 2024. Contains 371961 sequences. (Running on oeis4.)