Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A045985
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A045985 a(n) = least k such that sum of first k primes is n times a prime. +0
1
1, 3, 10, 5, 3, 123, 8, 15, 20, 147, 8, 97, 92, 5, 414, 27, 120, 739, 144, 9, 86, 69, 858, 99, 62, 61, 26, 33, 7, 57, 456, 11, 76, 13, 180, 207, 58, 23, 166, 17, 38, 339, 10, 693, 242, 23, 1162, 169, 440, 9, 374, 117, 682, 187, 1284, 683, 70, 281, 48 (list; graph; listen)
OFFSET

1,2

LINKS

T. D. Noe, Table of n, a(n) for n=1..1000

EXAMPLE

For example a(3)=10 because the partial sum of first 10 primes is 3*43=129

CROSSREFS

Sequence in context: A003620 A111229 A100984 this_sequence A035411 A033478 A111127

Adjacent sequences: A045982 A045983 A045984 this_sequence A045986 A045987 A045988

KEYWORD

nice,nonn

AUTHOR

Felice Russo (felice.russo(AT)katamail.com)

EXTENSIONS

More terms from David W. Wilson (davidwwilson(AT)comcast.net)

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 17 23:40 EST 2009. Contains 171025 sequences.


AT&T Labs Research