Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A079095
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A079095 Square-free numbers of the form (prime(n)+1)*(prime(n+1)+1)/4. +0
3
3, 6, 42, 399, 462, 930, 1054, 3135, 4830, 6478, 13110, 19599, 20022, 24963, 26394, 35530, 38805, 39999, 41205, 44310, 52899, 71002, 74254, 81510, 94863, 95790, 103362, 109230, 111547, 114243, 135790, 144399, 146685, 157206, 166866, 183183 (list; graph; listen)
OFFSET

1,1

EXAMPLE

(A000040(12)+1)*(A000040(12+1)+1)/4 = (37+1)*(41+1)/4 = 399 = 3*7*19, therefore 399 is a term.

CROSSREFS

Cf. A079093, A005117.

Sequence in context: A104271 A109491 A085696 this_sequence A002028 A116315 A001886

Adjacent sequences: A079092 A079093 A079094 this_sequence A079096 A079097 A079098

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)lhsystems.com), Dec 22 2002

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 19 23:53 EDT 2008. Contains 142930 sequences.


AT&T Labs Research