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

 

Logo

Annual Appeal: Today, Nov 11 2014, is the 4th anniversary of the launch of the new OEIS web site. 70,000 sequences have been added in these four years, all edited by volunteers. Please make a donation (tax deductible in the US) to help keep the OEIS running.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A129943 Left truncatable primes in base 7 (written in decimal form). 0
2, 3, 5, 17, 19, 23, 31, 37, 47, 227, 233, 311, 313, 317, 331, 919, 997, 2371, 2389, 10601, 111443, 817337 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

There are a total number of 22 left truncatable primes in base 7.

REFERENCES

Angell, I. O. and Godwin, H. J. "On Truncatable Primes." Math. Comput. 31, 265-267, 1977.

LINKS

Table of n, a(n) for n=1..22.

Index entries for sequences related to truncatable primes

Eric Weisstein: Truncatable Prime.

CROSSREFS

Cf. A024782, A076623.

Sequence in context: A035089 A045313 A045314 * A129673 A215372 A058501

Adjacent sequences:  A129940 A129941 A129942 * A129944 A129945 A129946

KEYWORD

nonn,fini,full,base

AUTHOR

Martin Renner, Jun 09 2007

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Superseeker | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified December 20 21:34 EST 2014. Contains 252289 sequences.