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A139063
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Numbers k for which (6+k!)/6 is prime.
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43
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3, 4, 10, 11, 13, 14, 17, 21, 82, 115, 165, 167, 173, 174, 208, 225, 380
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| Primes of the form (6+k!)/6 see A139062.
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MATHEMATICA
| a = {}; Do[If[PrimeQ[(n! + 6)/6], AppendTo[a, n]], {n, 1, 500}]; a
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PROG
| (PARI) for(k=3, 1e3, if(ispseudoprime(k!/6+1), print1(k", "))) \\ Charles R Greathouse IV, Jul 15 2011
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CROSSREFS
| Cf. A082672, A089085, A089130, A117141, A007749, A139056, A139057, A139058, A139059, A139060, A139061, A139061, A139062, A139063, A139064, A139065, A139066, A020458.
Sequence in context: A075100 A066861 A191192 * A191134 A196101 A200816
Adjacent sequences: A139060 A139061 A139062 * A139064 A139065 A139066
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KEYWORD
| nonn
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AUTHOR
| Artur Jasinski (grafix(AT)csl.pl), Apr 07 2008
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