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Search: id:A100768
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| A100768 |
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p * (n^p) - 1 where p = prime(n). |
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+0
1
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| 1, 23, 1214, 114687, 537109374, 169789022207, 3954718737782518, 2738188573441261567, 203847576752007525206366, 2899999999999999999999999999999, 5950246173690264895628552080046140
(list; graph; listen)
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OFFSET
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1,2
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EXAMPLE
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If n=1, then p=2, and a(1)=2*1^2 - 1 = 1.
If n=2, then p=3, and a(2)=3*2^3 - 1 = 23.
If n=3, then p=5, and a(3)=5*3^5 - 1 = 1214.
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MAPLE
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a:=n->ithprime(n)*n^ithprime(n)-1: seq(a(n), n=1..13); (Deutsch)
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CROSSREFS
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Adjacent sequences: A100765 A100766 A100767 this_sequence A100769 A100770 A100771
Sequence in context: A128404 A126741 A061063 this_sequence A049003 A003281 A034243
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KEYWORD
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nonn,easy
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AUTHOR
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Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Jan 03 2005
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EXTENSIONS
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More terms from Emeric Deutsch (deutsch(AT)duke.poly.edu), Aug 01 2005
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