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

 

Logo

Annual Appeal: Today, Nov 11 2014, is the 4th anniversary of the launch of the new OEIS web site. 70,000 sequences have been added in these four years, all edited by volunteers. Please make a donation (tax deductible in the US) to help keep the OEIS running.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A112893 a(n) is the least positive integer in base 10 containing n twos that is divisible by n. 1
2, 22, 222, 22212, 222220, 222222, 21222222, 222222224, 222222222, 22222222220, 222222222222, 2222222222220, 22222122222222, 222122222222222, 2222222222222220, 22222222222222224, 222202222222222222 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..17.

FORMULA

a(n) = n*A112894(n).

EXAMPLE

a(4) = 22212 because 22212 contains 4 twos and is divisible by 4.

CROSSREFS

Cf. A112889-A112898, A112900-A112905, A112907-A112910.

Sequence in context: A174200 A137109 A002276 * A086855 A089182 A138140

Adjacent sequences:  A112890 A112891 A112892 * A112894 A112895 A112896

KEYWORD

base,nonn

AUTHOR

Ray G. Opao, Oct 05 2005

EXTENSIONS

Extended by Ray Chandler, Oct 09 2005

STATUS

approved

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

Content is available under The OEIS End-User License Agreement .

Last modified November 22 20:13 EST 2014. Contains 249827 sequences.