Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A083520
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A083520 Primes p such that p-1 is a product of two or more consecutive integers. Or (p-1) is a permutation of m items chosen from n, for some m and n. p-1 = k*(k+1)(k+2)...(k+r) for some k and r, r>0. +0
3
3, 7, 13, 31, 43, 61, 73, 157, 211, 241, 307, 337, 421, 463, 601, 757, 991, 1123, 1321, 1483, 1723, 2521, 2551, 2731, 2971, 3307, 3361, 3541, 3907, 4423, 4831, 5113, 5701, 6007, 6163, 6481, 6841, 8011, 8191, 9241, 9901, 10303, 10627, 11131, 12211, 12433 (list; graph; listen)
OFFSET

1,1

EXAMPLE

61 belongs to this sequence as 60 = 3*4*5, 73 belongs to this sequence as 72 = 8*9.

CROSSREFS

Cf. A083521.

Cf. A002383.

Sequence in context: A105435 A117708 A093431 this_sequence A079018 A002383 A068679

Adjacent sequences: A083517 A083518 A083519 this_sequence A083521 A083522 A083523

KEYWORD

nonn

AUTHOR

Amarnath Murthy and Meenakshi Srikanth (amarnath_murthy(AT)yahoo.com), May 05 2003

EXTENSIONS

More terms from David Wasserman (wasserma(AT)spawar.navy.mil), Nov 19 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 July 25 07:41 EDT 2008. Contains 142293 sequences.


AT&T Labs Research