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A139447
Numbers n such that primorial(n)/2 + 64 is prime.
5
2, 3, 8, 11, 94, 127, 201, 211, 257, 259, 392, 1305, 5234, 13013, 13679, 16866, 23879
OFFSET
1,1
COMMENTS
a(18) > 25000. - Robert Price, Mar 29 2017
MATHEMATICA
k = 1/2; a = {}; Do[k = k*Prime[n]; If[PrimeQ[k + 64], Print[n]; AppendTo[a, n]], {n, 325}]; a
CROSSREFS
KEYWORD
nonn
AUTHOR
Artur Jasinski, Apr 21 2008
EXTENSIONS
a(12) from Ray Chandler, Jun 16 2013
a(13)-a(17) from Robert Price, Mar 29 2017
STATUS
approved