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!)
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 | 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 7 07:15 EST 2016. Contains 278841 sequences.