Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A050658
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A050658 Numbers n such that number of primes produced according to rules stipulated in Honaker's A048853 is 7. +0
2
11, 17, 19, 21, 27, 39, 43, 51, 57, 69, 73, 81, 87, 93, 151, 179, 189, 203, 207, 211, 227, 233, 239, 241, 249, 251, 271, 277, 281, 299, 301, 303, 313, 323, 329, 351, 353, 371, 373, 381, 391, 403, 413, 423, 457, 467, 479, 509, 511, 513, 519, 531, 533, 537, 547 (list; graph; listen)
OFFSET

1,1

EXAMPLE

Altering a(4)=21 gives 7 primes: 11, 31, 41, 61, 71, 23 and 29.

CROSSREFS

Cf. A048853, A050662, A050669.

Sequence in context: A025141 A105709 A031329 this_sequence A050891 A061751 A063449

Adjacent sequences: A050655 A050656 A050657 this_sequence A050659 A050660 A050661

KEYWORD

nonn,base

AUTHOR

Patrick De Geest (pdg(AT)worldofnumbers.com), Jul 15 1999.

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 September 7 15:23 EDT 2008. Contains 143483 sequences.


AT&T Labs Research