A288413 - OEIS

%I #5 Jun 08 2017 23:50:06

%S 1039,1129,13749311599,6332659870762851649,

%T 1408316897580354679543222894676508168024833284165925995774150107832775465649821970462037757921294414350725483019407292942600250244141649

%N Primes of the form k!2+1024, where k!2 is the double factorial number (A006852).

%H Robert Price, <a href="/A288413/b288413.txt">Table of n, a(n) for n = 1..7</a>

%H Henri& Renaud Lifchitz, <a href="http://www.primenumbers.net/prptop/searchform.php?form=n2+1024&amp;action=Search">PRP Records.Search for n!2+1024.</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] + 1024, {i, 0, 100}], PrimeQ[#]&]

%Y Cf. A076197.

%K nonn

%O 1,1

%A _Robert Price_, Jun 08 2017