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Search: id:A062576
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| A062576 |
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Numbers n such that k^n - (k-1)^n is prime, where k is 10. |
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1
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| 2, 3, 7, 11, 19, 29, 401, 709, 2531, 15787, 66949, 282493
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Terms > 1000 are often only strong pseudo-primes.
All terms are prime. - Alexander Adamchuk (alex(AT)kolmogorov.com), Apr 27 2008
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LINKS
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Henri & Renaud Lifchitz, PRP Records.
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CROSSREFS
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Cf. A000043, A057468, A059801, A059802, A062572-A062666.
Cf. A016189 = 10^n - 9^n.
Sequence in context: A105897 A129386 A064270 this_sequence A079739 A158709 A055502
Adjacent sequences: A062573 A062574 A062575 this_sequence A062577 A062578 A062579
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KEYWORD
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nonn,hard
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AUTHOR
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Mike Oakes (Mikeoakes2(AT)aol.com), May 18 2001, May 19 2001
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EXTENSIONS
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Three more terms 15787, 66949 and 282493 found by Jean-Louis Charton in 2004 and 2007
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