Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A053164
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A053164 4th root of largest 4th power dividing n. +0
6
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 3 (list; graph; listen)
OFFSET

1,16

COMMENT

Multiplicative with a(p^e) = p^[e/4]. - Mitch Harris, Apr 19 2005.

LINKS

H. Bottomley, Some Smarandache-type multiplicative sequences

FORMULA

a(n) =A000188(A000188(n)) =A008835(n)^(1/4)

Multiplicative with a(p^e) = p^[e/4].

EXAMPLE

a(32)=2 since 2=16^(1/4) and 16 is the largest 4th power dividing 32

CROSSREFS

A000188, A000190, A008835.

Adjacent sequences: A053161 A053162 A053163 this_sequence A053165 A053166 A053167

Sequence in context: A043290 A043289 A063775 this_sequence A055229 A062379 A043288

KEYWORD

nonn,mult

AUTHOR

Henry Bottomley (se16(AT)btinternet.com), Feb 29 2000

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 October 11 13:47 EDT 2008. Contains 144830 sequences.


AT&T Labs Research