login
A289857
Primes of the form k!2-512, where k!2 is the double factorial number (A006852).
1
433, 9883, 13749310063, 316234142713, 25373791335626257947657608863, 7297912393562140321551086320493608726062890113, 79777941814291672401518892224505807820921910393015244140113
OFFSET
1,1
LINKS
MATHEMATICA
MultiFactorial[n_, k_] := If[n<1, 1, n*MultiFactorial[n-k, k]];
Select[Table[MultiFactorial[i, 2] - 512, {i, 9, 100}], PrimeQ[#]&]
CROSSREFS
Cf. A258452.
Sequence in context: A142539 A059665 A059664 * A198450 A241925 A108832
KEYWORD
nonn
AUTHOR
Robert Price, Jul 13 2017
STATUS
approved