Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A114072
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A114072 Numbers n such that phi(n) + n is a fourth power. +0
1
12, 41, 172, 176, 192, 313, 385, 972, 1008, 1201, 2732, 2752, 2816, 3072, 6668, 7321, 14281, 15552, 16128, 25616, 29425, 41761, 43696, 43712, 44032, 45056, 49152, 78732, 78768, 79056, 81648, 84240, 97241, 106688, 123921, 139921 (list; graph; listen)
OFFSET

1,1
EXAMPLE

phi(41) + 41 = 81 = 3^4.

CROSSREFS

Sequence in context: A033586 A137389 A012867 this_sequence A022672 A109275 A085798

Adjacent sequences: A114069 A114070 A114071 this_sequence A114073 A114074 A114075

KEYWORD

nonn

AUTHOR

Giovanni Resta (g.resta(AT)iit.cnr.it), Feb 13 2006

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 24 23:16 EST 2009. Contains 167481 sequences.

AT&T Labs Research

Legal Notice
© 2009 AT&T Intellectual Property. All Rights Reserved.