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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A166590 Totally multiplicative sequence with a(p) = p+2 for prime p. 16
1, 4, 5, 16, 7, 20, 9, 64, 25, 28, 13, 80, 15, 36, 35, 256, 19, 100, 21, 112, 45, 52, 25, 320, 49, 60, 125, 144, 31, 140, 33, 1024, 65, 76, 63, 400, 39, 84, 75, 448, 43, 180, 45, 208, 175, 100, 49, 1280, 81, 196 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

FORMULA

Multiplicative with a(p^e) = (p+2))^e. If n = Product p(k)^e(k) then a(n) = Product (p(k)+2)^e(k).

CROSSREFS

Sequence in context: A051721 A050226 A119562 * A085768 A166304 A078713

Adjacent sequences:  A166587 A166588 A166589 * A166591 A166592 A166593

KEYWORD

nonn,mult

AUTHOR

Jaroslav Krizek (jaroslav.krizek(AT)atlas.cz), Oct 17 2009

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 15 08:12 EST 2012. Contains 205724 sequences.