Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A120878
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A120878 a(n) = sum of first n terms of sequence A120877. +0
2
1, 2, 4, 7, 9, 12, 18, 25, 27, 31, 33, 37, 39, 43, 45, 49, 52, 64, 76, 88, 100, 112, 125, 127, 129, 134, 144, 167, 169, 172, 187, 189, 196, 214, 226, 238, 252, 284, 300, 331, 333, 339, 345, 354, 374, 387, 394, 407, 409, 411, 417, 423, 430, 447, 453, 459, 467, 469 (list; graph; listen)
OFFSET

1,2

LINKS

Leroy Quet, Home Page (listed in lieu of email address)

PROGRAM

(PARI) {m=60; v=[1]; for(n=2, m, a=0; q=sum(i=1, n-1, v[i]); for(j=1, n-1, if(q%v[j]==0, a++)); print1(q, ", "); v=concat(v, a))} - (Klaus Brockhaus, Aug 16 2006)

CROSSREFS

Cf. A120877.

Sequence in context: A024193 A064550 A064491 this_sequence A137996 A080057 A087158

Adjacent sequences: A120875 A120876 A120877 this_sequence A120879 A120880 A120881

KEYWORD

nonn

AUTHOR

Leroy Quet Jul 10 2006

EXTENSIONS

More terms from Klaus Brockhaus (klaus-brockhaus(AT)t-online.de), Aug 16 2006

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 18 21:37 EST 2009. Contains 171024 sequences.


AT&T Labs Research