Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A094666
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A094666 Composite NSW numbers. +0
1
1393, 8119, 47321, 275807, 1607521, 54608393, 318281039, 1855077841, 10812186007, 367296043199, 2140758220993, 12477253282759, 72722761475561, 423859315570607, 2470433131948081, 14398739476117879, 83922003724759193 (list; graph; listen)
OFFSET

1,1

LINKS

J. A. Sellers, Infinitely Many Composite NSW Numbers: An Inductive Proof

J. A. Sellers and H. Williams, On the Infinitude of Composite NSW Numbers

MATHEMATICA

a[0] = 1; a[1] = 7; a[n_] := a[n] = 6a[n - 1] - a[n - 2]; a /@ Select[ Range[23], !PrimeQ[ a[ # ]] &] (from Robert G. Wilson v Jun 09 2004)

CROSSREFS

Cf. A002315, A088165.

Sequence in context: A063172 A031983 A069422 this_sequence A163043 A069366 A163054

Adjacent sequences: A094663 A094664 A094665 this_sequence A094667 A094668 A094669

KEYWORD

nonn

AUTHOR

Lekraj Beedassy (blekraj(AT)yahoo.com), Jun 07 2004

EXTENSIONS

More terms from Robert G. Wilson v (rgwv(AT)rgwv.com), Jun 09 2004

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 15 00:47 EST 2009. Contains 170825 sequences.


AT&T Labs Research