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Search: id:A062009
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| A062009 |
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Floor of Sum{k=1...n} sqrt(prime(k)). |
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+0
2
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| 1, 3, 5, 8, 11, 14, 19, 23, 28, 33, 39, 45, 51, 58, 65, 72, 80, 87, 96, 104, 113, 121, 131, 140, 150, 160, 170, 180, 191, 201, 213, 224, 236, 248, 260, 272, 285, 297, 310, 323, 337, 350, 364, 378, 392, 406, 421, 436, 451, 466, 481, 497, 512, 528, 544, 560, 577
(list; graph; listen)
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OFFSET
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1,2
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LINKS
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Harry J. Smith, Table of n, a(n) for n=1,...,1000
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MAPLE
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P:=proc(n) local k, i; for i from 1 by 1 to n do print(trunc(sum('evalf(sqrt(ithprime(k)), 50)', 'k'=1..i))); od; end: P(101); - Paolo P. Lava (ppl(AT)spl.at), Feb 05 2008
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PROGRAM
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(PARI) { default(realprecision, 100); for (n=1, 1000, write("b062009.txt", n, " ", floor(sum(k=1, n, sqrt(prime(k))))) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jul 29 2009]
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CROSSREFS
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Cf. A062048.
Sequence in context: A005356 A060432 A156023 this_sequence A062484 A022433 A081401
Adjacent sequences: A062006 A062007 A062008 this_sequence A062010 A062011 A062012
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KEYWORD
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easy,nonn
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AUTHOR
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Jason Earls (zevi_35711(AT)yahoo.com), Jun 27 2001
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EXTENSIONS
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Description corrected by Dean Hickerson (dean.hickerson(AT)yahoo.com), Jun 30, 2001
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