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Search: id:A138620
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| A138620 |
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Nonnegative integers n such that 12*n-1 is prime. |
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+0
2
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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
(list; graph; listen)
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OFFSET
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1,2
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EXAMPLE
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12*1-1=11, 12*2-1=23, 12*4-1=47, 12*5-1=59, ...
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MATHEMATICA
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a={}; Do[x=12*n-1; If[PrimeQ[x], AppendTo[a, n]], {n, 10^2}]; a
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CROSSREFS
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Sequence in context: A026426 A026480 A126424 this_sequence A098166 A007238 A083875
Adjacent sequences: A138617 A138618 A138619 this_sequence A138621 A138622 A138623
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KEYWORD
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nonn
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AUTHOR
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Vladimir Orlovsky (4vladimir(AT)gmail.com), May 14 2008
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