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Search: id:A062048
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| A062048 |
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Sum{k=1...n} Floor of sqrt(prime(k)). |
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+0
2
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| 1, 2, 4, 6, 9, 12, 16, 20, 24, 29, 34, 40, 46, 52, 58, 65, 72, 79, 87, 95, 103, 111, 120, 129, 138, 148, 158, 168, 178, 188, 199, 210, 221, 232, 244, 256, 268, 280, 292, 305, 318, 331, 344, 357, 371, 385, 399, 413, 428, 443, 458, 473, 488, 503, 519, 535, 551
(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(sum('trunc(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("b062048.txt", n, " ", sum(k=1, n, floor(sqrt(prime(k))))) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jul 30 2009]
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CROSSREFS
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Cf. A062009.
Sequence in context: A145196 A061536 A095114 this_sequence A075354 A086378 A088900
Adjacent sequences: A062045 A062046 A062047 this_sequence A062049 A062050 A062051
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KEYWORD
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easy,nonn
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AUTHOR
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Dean Hickerson (dean.hickerson(AT)yahoo.com), Jun 30 2001
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