Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A062736
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A062736 Primes of form Sum_{k=1..n} prime(k)+1. +0
1
3, 7, 13, 47, 109, 139, 251, 397, 457, 587, 659, 733, 1187, 1291, 1399, 2161, 2311, 2621, 2953, 3307, 4073, 4273, 4937, 5167, 5641, 7477, 7759, 10259, 10607, 10957, 11311, 12413, 13177, 13567, 15619, 20639, 23167, 24781, 25339, 25903, 28211 (list; graph; listen)
OFFSET

1,1

EXAMPLE

a(4)= 47 because 3+4+6+8+12+14 = 47.

PROGRAM

(PARI) je=[]; for(n=1, 350, x=sum(k=1, n, prime(k)+1); if(isprime(x), je=concat(je, x))); je

CROSSREFS

Sequence in context: A086208 A090968 A020641 this_sequence A103564 A083201 A004060

Adjacent sequences: A062733 A062734 A062735 this_sequence A062737 A062738 A062739

KEYWORD

nonn

AUTHOR

Jason Earls (zevi_35711(AT)yahoo.com), Jul 12 2001

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 4 14:15 EST 2008. Contains 151279 sequences.


AT&T Labs Research