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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A079546 sigma(n) - 4*phi(n). 1
-3, -1, -4, -1, -10, 4, -16, -1, -11, 2, -28, 12, -34, 0, -8, -1, -46, 15, -52, 10, -16, -4, -64, 28, -49, -6, -32, 8, -82, 40, -88, -1, -32, -10, -48, 43, -106, -12, -40, 26, -118, 48, -124, 4, -18, -16, -136, 60, -111, 13, -56, 2, -154, 48, -88, 24, -64, -22, -172, 104, -178, -24, -40, -1, -108, 64, -196, -2, -80, 48, -208, 99, -214 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

REFERENCES

D. S. Mitrinovic et al., Handbook of Number Theory, Kluwer, p. 88.

CROSSREFS

Cf. A000010, A000203, A068390.

Sequence in context: A006022 A078896 A180062 * A014413 A131632 A051348

Adjacent sequences:  A079543 A079544 A079545 * A079547 A079548 A079549

KEYWORD

sign

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Jan 23 2003

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 17 16:49 EST 2012. Contains 206058 sequences.