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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A090921 Smallest prime of the form concatenation n, 2n, 3n,...kn and 1. 0
11, 241, 31, 41, 5101, 61, 71, 8161, 9181, 101, 1122334455661, 12241, 131, 14281, 151, 1632481, 17341, 181, 191, 2040601, 211, 22441, 234669921151, 241, 251 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Next term a(26) has 116 digits; k = 39 and is too large to include - David Wasserman, Feb 15 2006

LINKS

Table of n, a(n) for n=1..25.

CROSSREFS

Sequence in context: A158297 A296170 A264465 * A089328 A077422 A267642

Adjacent sequences:  A090918 A090919 A090920 * A090922 A090923 A090924

KEYWORD

base,nonn

AUTHOR

Amarnath Murthy, Dec 16 2003

EXTENSIONS

More terms from David Wasserman, Feb 15 2006

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 November 16 22:10 EST 2018. Contains 317275 sequences. (Running on oeis4.)