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Search: id:A050248
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| A050248 |
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Integer averages of first n primes for some n. |
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+0
13
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| 2, 38, 110, 3066, 60020, 740282, 2340038, 29380602, 957565746
(list; graph; listen)
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OFFSET
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1,1
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LINKS
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Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.
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EXAMPLE
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38 is average of first n=23 primes; 110 (n=53); 3066 (n=853); 60020(n=11869).
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MATHEMATICA
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a=0; lst={}; Do[p=Prime[n]; a+=p; If[a/n==IntegerPart[a/n], AppendTo[lst, a/n]], {n, 10!}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Aug 05 2009]
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CROSSREFS
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a(n) = A050247/A045345.
Sequence in context: A163792 A050899 A068401 this_sequence A075459 A105645 A098456
Adjacent sequences: A050245 A050246 A050247 this_sequence A050249 A050250 A050251
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KEYWORD
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nonn,more
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AUTHOR
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Eric Weisstein (eric(AT)weisstein.com)
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EXTENSIONS
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Edited by N. J. A. Sloane (njas(AT)research.att.com) at the suggestion of David W. Wilson, Jun 23 2007
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