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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A100885 Imaginary part of the Gaussian multiperfect number associated with the real part A100884. 4
0, 3, 2, 5, 10, 18, 12, 24, 88 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

EXAMPLE

a(1) = Im(z= 1) with sigma(z) = 1 and m = 1.

a(2) = Im(z= 1+3i) with sigma(z) = 5+5i and m = 2-i.

a(3) = Im(z= 6+2i) with sigma(z) = -10-10i and m = -1+2i.

a(4) = Im(z= 5+5i) with sigma(z) = 20i and m = 2+2i.

a(5) = Im(z= 10+10i) with sigma(z) = -40+20i and m = -1+3i.

a(6) = Im(z= 12+18i) with sigma(z) = -12+60i and m = 2+2i.

a(9) = Im(z= 28+88i) with sigma(z) = -204-32i and m = -1+2i.

CROSSREFS

Cf. A100884, A100889, A100890.

Sequence in context: A049920 A128914 A050063 * A107298 A195104 A093924

Adjacent sequences:  A100882 A100883 A100884 * A100886 A100887 A100888

KEYWORD

nonn,more

AUTHOR

Yasutoshi Kohmoto (zbi74583(AT)boat.zero.ad.jp)

EXTENSIONS

Edited, all values replaced by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Mar 12 2010

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 14 16:11 EST 2012. Contains 205635 sequences.