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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A087388 a(1) = 2; a(n+1) is the least prime formed by adding one or more digits to the digit reversal of a(n). 4
2, 23, 3203, 302317, 7132031, 130231711, 1171320317, 71302317113, 31171320317057, 7507130231711321, 123117132031705727, 7275071302317113213, 312311713203170572751, 157275071302317113213041 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..14.

EXAMPLE

a(2) = 23, a(3) is the smallest prime beginning with 32 and is 3203.

CROSSREFS

Cf. A087389, A087390, A087391.

Sequence in context: A124513 A081781 A088734 * A117507 A068656 A030997

Adjacent sequences:  A087385 A087386 A087387 * A087389 A087390 A087391

KEYWORD

base,nonn

AUTHOR

Amarnath Murthy, Sep 09 2003

EXTENSIONS

More terms from David Wasserman, May 25 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
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified June 16 04:56 EDT 2021. Contains 345056 sequences. (Running on oeis4.)