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!)
A288613 Primes of the form k!6+16, where k!6 is the sextuple factorial number (A085158). 1

%I #9 Sep 26 2023 14:09:04

%S 17,19,23,43,71,107,421,8521,21521,21827591,49579091,295540261,

%T 42061737041,104463111041,131527051677191,

%U 9531467484069295223586105103141,1115181695636107541159574297065641,20881494984250735169104758744498001297509736890641

%N Primes of the form k!6+16, where k!6 is the sextuple factorial number (A085158).

%H Robert Price, <a href="/A288613/b288613.txt">Table of n, a(n) for n = 1..20</a>

%H Henri& Renaud Lifchitz, <a href="http://www.primenumbers.net/prptop/searchform.php?form=n6+16&amp;action=Search">PRP Records.Search for n!6+16.</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] + 16, {i, 0, 100}], PrimeQ[#]&]

%t Select[Table[Times@@Range[n,1,-6]+16,{n,200}],PrimeQ] (* _Harvey P. Dale_, Sep 26 2023 *)

%Y Cf. A288444.

%K nonn

%O 1,1

%A _Robert Price_, Jun 11 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 22:17 EDT 2024. Contains 371964 sequences. (Running on oeis4.)