Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A128420
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A128420 Numbers n such that p(n)# + p(n+1)# -1 is prime, where p(n)# is the product of first n primes (A002110). +0
8
0, 1, 3, 6, 8, 10, 12, 37, 72, 92, 142, 295, 1529, 1625, 1914, 2276, 4423 (list; graph; listen)
OFFSET

1,3

CROSSREFS

Cf. A002110, A057704, A128421.

Sequence in context: A112234 A023983 A159061 this_sequence A099135 A047282 A064437

Adjacent sequences: A128417 A128418 A128419 this_sequence A128421 A128422 A128423

KEYWORD

nonn

AUTHOR

Pierre CAMI (pierrecami(AT)tele2.fr), Mar 02 2007

EXTENSIONS

Corrected by Emeric Deutsch (deutsch(AT)duke.poly.edu), Mar 06 2007

Edited by Ray Chandler (rayjchandler(AT)sbcglobal.net), Mar 13 2007

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 November 24 23:11 EST 2009. Contains 167435 sequences.


AT&T Labs Research