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A289853 Primes of the form k!2-32, where k!2 is the double factorial number (A006852). 1


%S 73,25373791335626257947657609343,

%T 488960130368663401543922783473071784646213671843,

%U 2783097421140216173669833173554685254745646937315554685903182520041762334418182818434647284243799923238034037601108551025390593

%N Primes of the form k!2-32, where k!2 is the double factorial number (A006852).

%H Robert Price, <a href="/A289853/b289853.txt">Table of n, a(n) for n = 1..4</a>

%H Henri & Renaud Lifchitz, <a href="http://www.primenumbers.net/prptop/searchform.php?form=n2-32&amp;action=Search">PRP Records.Search for n!2-32.</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, 2] - 32, {i, 6, 100}], PrimeQ[#]&]

%Y Cf. A262772.

%K nonn

%O 1,1

%A _Robert Price_, Jul 13 2017

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Last modified April 19 15:00 EDT 2021. Contains 343116 sequences. (Running on oeis4.)