login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A073871 A073870 divided by n. 1
4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 1, 2, 2, 2, 1, 2, 1, 2, 2, 1, 2, 2, 1, 2, 1, 2, 2, 2, 1, 2, 2, 1, 2, 2, 1, 2, 2, 2, 1, 1, 1, 2, 2, 1, 1, 2, 1, 2, 2, 1, 2, 2, 1, 2, 1, 1, 2, 2, 1, 1, 2, 2, 2, 2, 1, 2, 1, 1, 2, 2, 1, 2, 2, 1, 1, 2, 1, 2, 2, 1, 1, 2, 1, 2, 1, 2, 2, 1, 1, 1, 2, 1, 2, 2, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..105.

FORMULA

a(1)=4, a(2) = a(3) = 3. For n > 3, if the odd part of n is 1, 9, or a prime, a(n) = 2, otherwise a(n) = 1. - Franklin T. Adams-Watters, May 12 2006

CROSSREFS

Cf. A073870.

Cf. A000265.

Sequence in context: A019975 A327869 A196274 * A120927 A241180 A117323

Adjacent sequences:  A073868 A073869 A073870 * A073872 A073873 A073874

KEYWORD

nonn

AUTHOR

Amarnath Murthy, Aug 16 2002

EXTENSIONS

Corrected and extended by Franklin T. Adams-Watters, May 12 2006

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified November 14 12:18 EST 2019. Contains 329114 sequences. (Running on oeis4.)