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A066377
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Number of numbers m <= n such that floor(sqrt(m)) divides m.
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2
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1, 3, 6, 10, 16, 24, 33, 45, 60, 76, 96, 120, 145, 175, 210, 246, 288, 336, 385, 441, 504, 568, 640, 720, 801, 891, 990, 1090, 1200, 1320, 1441, 1573, 1716, 1860, 2016, 2184, 2353, 2535, 2730, 2926, 3136, 3360, 3585, 3825, 4080, 4336
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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LINKS
| Harry J. Smith, Table of n, a(n) for n=1,...,1000
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PROG
| (PARI) { n=0; a=0; for (m=1, 10^9, if (m%floor(sqrt(m)) == 0, a+=m; write("b066377.txt", n++, " ", a); if (n==1000, return)) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Feb 12 2010]
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CROSSREFS
| Partial sums of A006446.
Sequence in context: A034198 A121776 A088637 * A173653 A122046 A078663
Adjacent sequences: A066374 A066375 A066376 * A066378 A066379 A066380
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KEYWORD
| nonn
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Dec 23 2001
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