Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A088840
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A088840 Denominator of quotient=sigma[5n]/sigma[n]. +0
4
1, 1, 1, 7, 1, 1, 1, 5, 1, 1, 1, 7, 1, 1, 1, 31, 1, 1, 1, 7, 1, 1, 1, 5, 1, 1, 1, 7, 1, 1, 1, 21, 1, 1, 1, 7, 1, 1, 1, 5, 1, 1, 1, 7, 1, 1, 1, 31, 1, 1, 1, 7, 1, 1, 1, 5, 1, 1, 1, 7, 1, 1, 1, 127, 1, 1, 1, 7, 1, 1, 1, 5, 1, 1, 1, 7, 1, 1, 1, 31, 1, 1, 1, 7, 1, 1, 1, 5, 1, 1, 1, 7, 1, 1, 1, 21, 1, 1, 1, 7, 1, 1 (list; graph; listen)
OFFSET

1,4

MATHEMATICA

Table[Numerator[DivisorSigma[1, 5*n]/DivisorSigma[1, n]], {n, 1, 128}]

CROSSREFS

Cf. A088837-A088841, A038712, A080278, A000203.

Sequence in context: A140213 A091258 A072101 this_sequence A165725 A115064 A086868

Adjacent sequences: A088837 A088838 A088839 this_sequence A088841 A088842 A088843

KEYWORD

easy,nonn,mult

AUTHOR

Labos E. (labos(AT)ana.sote.hu), Nov 04 2003

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 10 00:48 EST 2009. Contains 170565 sequences.


AT&T Labs Research