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Search: id:A068519
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| A068519 |
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If n is prime then a(n)=n, else a(n) is the n-th prime. |
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+0
7
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| 2, 2, 3, 7, 5, 13, 7, 19, 23, 29, 11, 37, 13, 43, 47, 53, 17, 61, 19, 71, 73, 79, 23, 89, 97, 101, 103, 107, 29, 113, 31, 131, 137, 139, 149, 151, 37, 163, 167, 173, 41, 181, 43, 193, 197, 199, 47, 223, 227, 229, 233, 239, 53, 251, 257, 263, 269, 271, 59, 281, 61, 293
(list; graph; listen)
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OFFSET
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1,1
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LINKS
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Zak Seidov, Table of n, a(n) for n=0..1000 [From Zak Seidov (zakseidov(AT)yahoo.com), Nov 04 2009]
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EXAMPLE
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a(2)=2 since 2 is prime.
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MAPLE
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seq(`if`(isprime(i)=true, i, ithprime(i)), i=1..k);
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MATHEMATICA
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Table[If[PrimeQ[n], n, Prime[n]], {n, 1, 200}] [From Zak Seidov (zakseidov(AT)yahoo.com), Nov 04 2009]
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CROSSREFS
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Sequence in context: A123934 A051301 A002583 this_sequence A083702 A108041 A095017
Adjacent sequences: A068516 A068517 A068518 this_sequence A068520 A068521 A068522
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KEYWORD
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easy,nonn,new
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AUTHOR
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Francois Jooste (phukraut(AT)hotmail.com), Mar 18 2002
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EXTENSIONS
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More terms, b-file and Mathematica code from Zak Seidov (zakseidov(AT)yahoo.com), Nov 04 2009
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