login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo

Please make a donation to keep the OEIS running. We are now in our 56th year. In the past year we added 10000 new sequences and reached almost 9000 citations (which often say "discovered thanks to the OEIS").
Other ways to donate

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A081208 Smallest prime which begins with all the n-digit primes. 0
2357, 11131719232931374143475359616771737983899721 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..2.

EXAMPLE

a(1) = 2357 because its leading digits are the 1-digit primes, viz. 2, 3, 5 and 7 and it is prime.

CROSSREFS

Sequence in context: A030473 A134649 A135377 * A250990 A269483 A187238

Adjacent sequences:  A081205 A081206 A081207 * A081209 A081210 A081211

KEYWORD

base,nonn,bref

AUTHOR

Walter Nissen, Mar 10 2003

EXTENSIONS

The next term is too large to include.

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
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified November 27 06:40 EST 2020. Contains 338678 sequences. (Running on oeis4.)