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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A020458 Primes that contain digits 2 and 3 only. 50
2, 3, 23, 223, 233, 2333, 3323, 23333, 32233, 32323, 33223, 222323, 232333, 233323, 323233, 323333, 333233, 333323, 2222333, 2223233, 2232323, 2233223, 2332333, 2333323, 3222223, 3223223, 3223333, 3233323, 3233333, 3332233, 3333233 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

LINKS

Charles R Greathouse IV, Table of n, a(n) for n = 1..10000

CROSSREFS

Cf. A139067, A139069.

Cf. A032810, A020463. [From Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Sep 06 2008]

Sequence in context: A009180 A041459 A126702 * A139067 A099656 A157733

Adjacent sequences:  A020455 A020456 A020457 * A020459 A020460 A020461

KEYWORD

nonn,base

AUTHOR

David W. Wilson (davidwwilson(AT)comcast.net)

EXTENSIONS

Edited by N. J. A. Sloane (njas(AT)research.att.com), Jul 27 2008 at the suggestion of Dmitry Kamenetsky.

Edited by Charles R Greathouse IV (charles.greathouse(AT)case.edu), Mar 17 2010

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

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

Last modified February 16 14:37 EST 2012. Contains 205930 sequences.