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A083685
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Smallest primes of the form k*LCM(n) - 1 where LCM(n) is the least common multiple of numbers from 1 to n.
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0
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2, 3, 5, 11, 59, 59, 419, 839, 5039, 5039, 55439, 55439, 1081079, 1081079, 1081079, 1441439, 24504479, 24504479, 232792559, 232792559, 232792559, 232792559, 5354228879, 5354228879, 53542288799, 53542288799, 1044074631599
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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EXAMPLE
| a(9) = 5039. LCM of numbers from 1 to 9 = 2520. 2519 is not a prime but 2*2520 -1 = 5039 is a prime.
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CROSSREFS
| Cf. A070858.
Sequence in context: A000905 A065296 A114895 * A087524 A088053 A050444
Adjacent sequences: A083682 A083683 A083684 * A083686 A083687 A083688
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KEYWORD
| nonn
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AUTHOR
| Amarnath Murthy and Meenakshi Srikanth (amarnath_murthy(AT)yahoo.com), Jun 15 2003
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EXTENSIONS
| Corrected and extended by Vladeta Jovovic (vladeta(AT)eunet.rs), Jun 16 2003
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