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A087313 a(n) is the smallest integer > 1 of the form sum_{i = 1..n} x^(1/i)/n. 1
2, 3, 255, 1046, 230584301136334848, 7065193045869401568154708608 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

x is given by A106441(n)^A003418(n).

LINKS

Table of n, a(n) for n=1..6.

EXAMPLE

a(3) = [x+x^(1/2)+x^(1/3)]/3 for x = 3^6, i.e. a(3) =

(729+27+9)/3 = 255.

CROSSREFS

Sequence in context: A117324 A037059 A302398 * A004876 A177505 A068104

Adjacent sequences:  A087310 A087311 A087312 * A087314 A087315 A087316

KEYWORD

nonn,easy

AUTHOR

Amarnath Murthy, Sep 03 2003

EXTENSIONS

Edited and extended by David Wasserman, May 02 2005

Next term has 355 digits.

STATUS

approved

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Last modified November 12 13:36 EST 2018. Contains 317109 sequences. (Running on oeis4.)