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Search: id:A145106
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| A145106 |
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Numbers n such that 6^n+5 is prime. |
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+0
1
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| 1, 2, 4, 7, 10, 14, 18, 32, 55, 102, 177, 190, 247, 276, 372, 1524, 1545, 2502, 4966, 5294
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OFFSET
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1,2
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COMMENT
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The next term is greater than 12000.
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EXAMPLE
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6^1+5=11 and 6^2+5=41, which are both prime, so 1 and 2 are in the sequence. 6^3+5=221 is not prime since it is divisible by 7, so 3 is not in the sequence.
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CROSSREFS
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A059614
Sequence in context: A014616 A144873 A120679 this_sequence A127723 A076268 A055607
Adjacent sequences: A145103 A145104 A145105 this_sequence A145107 A145108 A145109
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KEYWORD
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nonn
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AUTHOR
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Dmitry Kamenetsky (dkamen(AT)rsise.anu.edu.au), Oct 02 2008
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