Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A110480
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A110480 Numbers n such that (n^2+6)/5 is prime. +0
3
2, 3, 7, 17, 23, 47, 53, 77, 133, 143, 157, 173, 193, 203, 217, 233, 247, 343, 347, 353, 373, 383, 427, 443, 457, 493, 527, 577, 583, 707, 767, 817, 823, 847, 857, 893, 907, 973, 1003, 1067, 1117, 1127, 1153, 1193, 1207, 1223, 1243, 1253, 1277, 1333, 1397 (list; graph; listen)
OFFSET

1,1

FORMULA

a(n) = Sqrt(A110481(n)).

CROSSREFS

Cf. A110481, A110482.

Sequence in context: A040141 A019335 A113425 this_sequence A083822 A030086 A078721

Adjacent sequences: A110477 A110478 A110479 this_sequence A110481 A110482 A110483

KEYWORD

nonn

AUTHOR

Giovanni Teofilatto (g.teofilatto(AT)tiscalinet.it), Sep 09 2005

EXTENSIONS

Corrected and extended by Rick L. Shepherd (rshepherd2(AT)hotmail.com) and Ray Chandler (rayjchandler(AT)sbcglobal.net), Sep 12 2005

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 December 16 13:01 EST 2009. Contains 170825 sequences.


AT&T Labs Research