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Search: id:A141101
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| A141101 |
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p(2*n)-n*2, where p(n)=n-th prime. |
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+0
1
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| 1, 3, 7, 11, 19, 25, 29, 37, 43, 51, 57, 65, 75, 79, 83, 99, 105, 115, 125, 133, 139, 149, 153, 175, 179, 187, 197, 207, 213, 221, 231, 247, 251, 269, 279, 287, 299, 307, 319, 329, 339, 349, 357, 369, 373, 387, 397, 407, 423, 441, 455, 465, 471, 485, 491, 501
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OFFSET
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1,2
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EXAMPLE
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If n=1, then a(1)=p(2*1)-1*2=p(2)-2=3-2=1.
If n=4, then a(4)=p(2*4)-4*2=p(8)-8=19-8=11.
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MAPLE
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p:= ithprime: a:= seq(p(2*n)-2*n, n=1..100); [From D. S. McNeil (d.mcneil(AT)qmul.ac.uk), Mar 21 2009]
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CROSSREFS
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Sequence in context: A018805 A135932 A105876 this_sequence A098379 A049754 A126254
Adjacent sequences: A141098 A141099 A141100 this_sequence A141102 A141103 A141104
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KEYWORD
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nonn
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AUTHOR
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Juri-Stepan Gerasimov (2stepan(AT)rambler.ru) Jul 31 2008
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EXTENSIONS
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a(32), a(40) corrected and extended by D. S. McNeil (d.mcneil(AT)qmul.ac.uk), Mar 21 2009
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