Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A098219
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A098219 a[n]=Floor[sigma[sigma[n]]/n]=Floor[A051027[n]/n]. +0
5
1, 2, 2, 2, 2, 4, 2, 3, 1, 3, 2, 4, 1, 4, 4, 2, 2, 3, 2, 4, 3, 4, 2, 7, 1, 3, 3, 4, 2, 6, 2, 3, 3, 3, 3, 3, 1, 4, 3, 5, 2, 6, 1, 5, 3, 4, 2, 4, 1, 2, 3, 3, 2, 6, 3, 6, 3, 4, 2, 8, 1, 4, 3, 2, 3, 6, 1, 4, 3, 5, 2, 4, 1, 3, 2, 4, 3, 6, 2, 4, 1, 3, 2, 6, 3, 3, 4, 6, 2, 6, 2, 5, 2, 4, 3, 7, 1, 2, 3, 2, 2, 5, 2, 5, 4 (list; graph; listen)
OFFSET

1,2

EXAMPLE

n=10: a[n]=Floor[sigma[sigma[10]]/n]=Floor[sigma[18]/10]=Floor[39/10]=3.

CROSSREFS

Cf. A000203, A051027, A008333, A098220-A098222.

Sequence in context: A097859 A028326 A048003 this_sequence A061389 A138011 A036555

Adjacent sequences: A098216 A098217 A098218 this_sequence A098220 A098221 A098222

KEYWORD

nonn

AUTHOR

Labos E. (labos(AT)ana.sote.hu), Oct 25 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 August 19 23:53 EDT 2008. Contains 142930 sequences.


AT&T Labs Research