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A067086
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Floor[ sum 1..n {1/k^(1/3)}].
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1
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1, 1, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 7, 8, 8, 9, 9, 9, 10, 10, 10, 11, 11, 12, 12, 12, 13, 13, 13, 13, 14, 14, 14, 15, 15, 15, 16, 16, 16, 17, 17, 17, 17, 18, 18, 18, 18, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 22, 22, 22, 22, 23, 23, 23, 23, 24, 24, 24, 24, 25, 25, 25, 25
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,3
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LINKS
| Harry J. Smith, Table of n, a(n) for n=1,...,1000
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EXAMPLE
| a(4) = floor [ 1+ 1/(2^(1/3)) + 1/ (3^(1/3)) + 1/ (4^(1/3)) ] = 3.
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MATHEMATICA
| Table[ Floor[ Sum[1/k^(1/3), {k, 1, n} ]], {n, 1, 75} ]
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PROG
| (PARI) { s=0; for (n=1, 1000, s+=1/n^(1/3); write("b067086.txt", n, " ", floor(s)) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), May 12 2010]
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CROSSREFS
| Cf. A067085.
Sequence in context: A024745 A030581 A113609 * A005410 A120835 A091374
Adjacent sequences: A067083 A067084 A067085 * A067087 A067088 A067089
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KEYWORD
| easy,nonn
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AUTHOR
| Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Jan 07 2002
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EXTENSIONS
| More terms from Robert G. Wilson v (rgwv(AT)rgwv.com), Jan 09 2002
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