Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A023248
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A023248 Numbers n such that n remains prime through 2 iterations of function f(x) = 3x + 8. +0
1
3, 11, 13, 31, 41, 43, 53, 101, 113, 211, 223, 263, 283, 431, 433, 491, 521, 563, 571, 601, 631, 641, 673, 743, 811, 911, 1151, 1361, 1621, 1693, 1973, 2243, 2393, 3083, 3163, 3181, 3343, 3461, 3821, 3923, 4481, 4523, 4561, 4591, 4663, 4861, 4903, 5051, 5261 (list; graph; listen)
OFFSET

1,1

CROSSREFS

Sequence in context: A033680 A032917 A006559 this_sequence A111488 A125308 A020451

Adjacent sequences: A023245 A023246 A023247 this_sequence A023249 A023250 A023251

KEYWORD

nonn

AUTHOR

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

page 1

Search completed in 0.002 seconds

Lookup | Welcome | Find friends | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
More pages | Superseeker | Maintained by N. J. A. Sloane (njas@research.att.com)

Last modified August 7 15:46 EDT 2008. Contains 142650 sequences.


AT&T Labs Research