Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A064375
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A064375 DivisorSigma[2,x]>EulerPhi[x]^3. +0
2
2, 3, 4, 6, 8, 10, 12, 14, 18, 20, 24, 30, 36, 42, 60 (list; graph; listen)
OFFSET

1,1

FORMULA

Solutions to A001157[x]>A000010[x]^3

EXAMPLE

d-square sums:{5, 10, 21, 50, 85, 130, 210, 250, 455, 546, 850, 1300, 1911, 2500, 5460} phi-cubes:{1, 8, 8, 8, 64, 64, 64, 216, 216, 512, 512, 512, 1728, 1728, 4096} differences:{4, 2, 13, 42, 21, 66, 146, 34, 239, 34, 338, 788, 183, 772, 1364} Sequence is believed to be full.

CROSSREFS

A001157, A000010, A055234.

Sequence in context: A011862 A122957 A078769 this_sequence A037229 A007183 A067783

Adjacent sequences: A064372 A064373 A064374 this_sequence A064376 A064377 A064378

KEYWORD

nonn

AUTHOR

Labos E. (labos(AT)ana.sote.hu), Sep 27 2001

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 25 20:09 EST 2009. Contains 167514 sequences.


AT&T Labs Research