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A289858
Primes of the form k!2-1024, where k!2 is the double factorial number (A006852).
1
9371, 34458401, 191898783962509601, 319830986772877770814601, 157952079428395476360490147277858351, 2987435000850314871976096554696085799164511452611632783323554397412108351, 283806325080779912837729172696128150920628587998105114415737667754150389601
OFFSET
1,1
LINKS
MATHEMATICA
MultiFactorial[n_, k_] := If[n<1, 1, n*MultiFactorial[n-k, k]];
Select[Table[MultiFactorial[i, 2] - 1024, {i, 10, 100}], PrimeQ[#]&]
CROSSREFS
Cf. A258866.
Sequence in context: A330902 A323803 A246736 * A259001 A259008 A256899
KEYWORD
nonn
AUTHOR
Robert Price, Jul 13 2017
STATUS
approved