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A289853
Primes of the form k!2-32, where k!2 is the double factorial number (
A006852
).
1
73, 25373791335626257947657609343, 488960130368663401543922783473071784646213671843, 278309742114021617366983317355468525474564693731555468590318252004176233441818281843464728424379992323803403760110855102
5390593
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OFFSET
1,1
LINKS
Robert Price,
Table of n, a(n) for n = 1..4
Henri & Renaud Lifchitz,
PRP Records.Search for n!2-32.
Joe McLean,
Interesting Sources of Probable Primes
OpenPFGW Project,
Primality Tester
MATHEMATICA
MultiFactorial[n_, k_] := If[n<1, 1, n*MultiFactorial[n-k, k]];
Select[Table[MultiFactorial[i, 2] - 32, {i, 6, 100}], PrimeQ[#]&]
CROSSREFS
Cf.
A262772
.
Sequence in context:
A159438
A291992
A076848
*
A000319
A033394
A114969
Adjacent sequences:
A289850
A289851
A289852
*
A289854
A289855
A289856
KEYWORD
nonn
AUTHOR
Robert Price
, Jul 13 2017
STATUS
approved
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Last modified May 13 07:22 EDT 2024. Contains 372498 sequences. (Running on oeis4.)