Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A156779
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A156779 Sum( d | n, sp(d)), where sp(d) = A034387(d) = sum of primes <= d. +0
1
0, 2, 5, 7, 10, 17, 17, 24, 22, 29, 28, 50, 41, 60, 56, 65, 58, 92, 77, 111, 99, 107, 100, 167, 110, 143, 122, 165, 129, 214, 160, 225, 193, 220, 187, 285, 197, 276, 243, 325, 238, 390, 281, 393, 354, 383, 328, 536, 345, 457, 391, 476, 381, 573, 419, 563, 463 (list; graph; listen)
OFFSET

1,2

PROGRAM

(PARI) vector(80, n, sumdiv(n, d, sum(i=1, primepi(d), prime(i))))

CROSSREFS

Sequence in context: A102339 A103871 A068817 this_sequence A076802 A024374 A065219

Adjacent sequences: A156776 A156777 A156778 this_sequence A156780 A156781 A156782

KEYWORD

nonn

AUTHOR

M. F. Hasler (MHasler(AT)univ-ag.fr), Feb 21 2009

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 2 11:54 EST 2009. Contains 167921 sequences.


AT&T Labs Research