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A138620
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Nonnegative integers n such that 12*n-1 is prime.
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1
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1, 2, 4, 5, 6, 7, 9, 11, 14, 15, 16, 19, 20, 21, 22, 26, 29, 30, 32, 35, 36, 37, 39, 40, 41, 42, 47, 49, 50, 54, 55, 57, 60, 62, 69, 70, 72, 74, 76, 79, 81, 82, 85, 86, 91, 92, 96, 97, 99, 102, 105, 107, 109, 110, 114, 119, 120, 121, 124, 125, 126, 127, 130
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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EXAMPLE
| 12*1-1=11, 12*2-1=23, 12*4-1=47, 12*5-1=59, ...
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MATHEMATICA
| a={}; Do[x=12*n-1; If[PrimeQ[x], AppendTo[a, n]], {n, 10^2}]; a
Select[Range[500], PrimeQ[12#-1]&] (* From Harvey P. Dale, May 14 2011 *)
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CROSSREFS
| Sequence in context: A026426 A026480 A126424 * A098166 A007238 A083875
Adjacent sequences: A138617 A138618 A138619 * A138621 A138622 A138623
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KEYWORD
| nonn
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AUTHOR
| Vladimir Orlovsky (4vladimir(AT)gmail.com), May 14 2008
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EXTENSIONS
| More terms from Harvey P. Dale, May 14 2011.
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