login
This site is supported by donations to The OEIS Foundation.

 

Logo

Annual Appeal: Please make a donation (tax deductible in USA) to keep the OEIS running. Over 5000 articles have referenced us, often saying "we discovered this result with the help of the OEIS".

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A064566 Reciprocal of n terminates with an infinite repetition of digit 7. Multiples of 10 are omitted. 1
36, 2304, 5625, 147456, 9437184, 87890625, 603979776, 38654705664, 1373291015625, 2473901162496, 158329674399744, 10133099161583616, 21457672119140625, 648518346341351424, 41505174165846491136 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

REFERENCES

A. H. Beiler, Recreations in the Theory of Numbers, Dover, N.Y., 1964, pps. 73-82.

LINKS

Table of n, a(n) for n=0..14.

Index entries for sequences related to decimal expansion of 1/n

FORMULA

Numbers of the form 9*2^(6i-4) and 9*5^(6i-2) [i>0].

EXAMPLE

E.g. 1/2304 = 0.000434027777777777...

CROSSREFS

Cf. A064560-A064567.

Sequence in context: A065782 A160482 A135626 * A230465 A120466 A202633

Adjacent sequences:  A064563 A064564 A064565 * A064567 A064568 A064569

KEYWORD

nonn,base

AUTHOR

Patrick De Geest, Sep 20 2001.

EXTENSIONS

More terms from James A. Sellers, Sep 28 2001

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified December 3 20:40 EST 2016. Contains 278745 sequences.