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

 

Logo

The OEIS is looking to hire part-time people to help edit core sequences, upload scanned documents, process citations, fix broken links, etc. - Neil Sloane, njasloane@gmail.com

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A060555 String together the first n numbers in an order which minimizes the result. 2
1, 12, 123, 1234, 12345, 123456, 1234567, 12345678, 123456789, 10123456789, 1011123456789, 101111223456789, 10111121323456789, 1011112131423456789, 101111213141523456789, 10111121314151623456789 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

If n is a power of 10 then put it at the end, if it is a repdigit then put it before floor[n/10], otherwise put it before (n-1).

LINKS

Table of n, a(n) for n=1..16.

CROSSREFS

Cf. A000422, A060554.

Sequence in context: A057137 A252043 A014824 * A138957 A007908 A262582

Adjacent sequences:  A060552 A060553 A060554 * A060556 A060557 A060558

KEYWORD

base,easy,nonn

AUTHOR

Henry Bottomley, Apr 02 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 May 28 21:38 EDT 2017. Contains 287241 sequences.