Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A053286
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A053286 Cototient of 2^n+1. +0
1
1, 1, 3, 1, 13, 17, 45, 1, 189, 225, 685, 257, 2733, 3841, 12969, 1, 43693, 75521, 174765, 61697, 731817, 848897, 2796205, 262145, 13304433, 14802689, 49449609, 15790337, 185023425, 313421825, 715827885, 6701057, 2957312961, 3551128577 (list; graph; listen)
OFFSET

1,3

FORMULA

a(n)=A051593[A000051(n)]

CROSSREFS

Cf. A000010, A000225, A051953.

Sequence in context: A068439 A133171 A133177 this_sequence A008826 A103440 A116483

Adjacent sequences: A053283 A053284 A053285 this_sequence A053287 A053288 A053289

KEYWORD

nonn

AUTHOR

Labos E. (labos(AT)ana.sote.hu), Mar 03 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 November 27 22:38 EST 2009. Contains 167602 sequences.


AT&T Labs Research