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A073890 Numerator of n/floor(sqrt(n)). 4
1, 2, 3, 2, 5, 3, 7, 4, 3, 10, 11, 4, 13, 14, 5, 4, 17, 9, 19, 5, 21, 11, 23, 6, 5, 26, 27, 28, 29, 6, 31, 32, 33, 34, 7, 6, 37, 19, 13, 20, 41, 7, 43, 22, 15, 23, 47, 8, 7, 50, 51, 52, 53, 54, 55, 8, 57, 58, 59, 60, 61, 62, 9, 8, 65, 33, 67, 17, 69, 35, 71, 9, 73, 37, 75, 19, 77 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Denominator is A075119(n).

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 1..10000

FORMULA

a(n) = n/A067815(n).

PROG

(Haskell)

import Data.Ratio ((%), numerator)

a073890 n = numerator $ n % a000196 n

-- Reinhard Zumkeller, Jul 08 2014

(PARI) a(n) = numerator(n/sqrtint(n)); \\ Michel Marcus, Dec 19 2017

CROSSREFS

Cf. A000196, A067815, A075119 (denominator).

Sequence in context: A033677 A116548 A117818 * A079311 A060474 A065988

Adjacent sequences:  A073887 A073888 A073889 * A073891 A073892 A073893

KEYWORD

nonn,frac,look

AUTHOR

Reinhard Zumkeller, Sep 03 2002

EXTENSIONS

Denominator reference fixed by Reinhard Zumkeller, Jul 08 2014

STATUS

approved

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Last modified April 18 08:37 EDT 2019. Contains 322209 sequences. (Running on oeis4.)