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A029940 Product phi(d); d divides n. 2
1, 1, 2, 2, 4, 4, 6, 8, 12, 16, 10, 32, 12, 36, 64, 64, 16, 144, 18, 256, 144, 100, 22, 1024, 80, 144, 216, 864, 28, 4096, 30, 1024, 400, 256, 576, 13824, 36, 324, 576, 16384, 40, 20736, 42, 4000, 9216, 484, 46, 131072, 252, 6400, 1024, 6912, 52, 46656, 1600 (list; graph; refs; listen; history; internal format)
OFFSET

1,3

LINKS

T. D. Noe, Table of n, a(n) for n = 1..1000

MATHEMATICA

Table[Product[EulerPhi[i], {i, Divisors[n]}], {n, 100}] (* Carl Najafi, Sep 06 2011 *)

CROSSREFS

Sequence in context: A087135 A162417 A094858 * A045674 A143483 A192326

Adjacent sequences:  A029937 A029938 A029939 * A029941 A029942 A029943

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

EXTENSIONS

More terms from Carl Najafi (carlnajafi(AT)gmail.com), Sep 06 2011

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Last modified February 14 08:58 EST 2012. Contains 205614 sequences.