Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A141489
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A141489 Numbers n such that n^2 + n + 257 is prime. +0
1
0, 2, 3, 4, 7, 9, 10, 11, 13, 14, 17, 18, 20, 21, 23, 24, 25, 27, 28, 30, 31, 34, 37, 41, 42, 44, 48, 49, 51, 53, 56, 59, 60, 63, 65, 66, 67, 69, 70, 73, 74, 77, 79, 80, 81, 83, 88, 90, 91, 93, 94, 95, 100 (list; graph; listen)
OFFSET

1,2

EXAMPLE

If n=100, then n^2 + n + 257 = 10357 (prime)

CROSSREFS

Cf. A002837, A056561, A133157, A133160.

Sequence in context: A120127 A047548 A095378 this_sequence A060253 A066276 A139442

Adjacent sequences: A141486 A141487 A141488 this_sequence A141490 A141491 A141492

KEYWORD

nonn

AUTHOR

Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Aug 09 2008

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 2 15:58 EST 2008. Contains 150992 sequences.


AT&T Labs Research