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A055929 EulerPhi of the factorial of prime(n). 1
1, 2, 32, 1152, 8294400, 1194393600, 64210599936000, 20804234379264000, 4229084764616785920000, 1396531754239566739931136000000, 1256878578815610065938022400000000 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..11.

FORMULA

a(n)=EulerPhi(prime(n)!) = A000010(A039716(n)) = A048855(prime(n)).

CROSSREFS

A000142, A039716.

Sequence in context: A282835 A012198 A012114 * A012237 A012093 A012214

Adjacent sequences:  A055926 A055927 A055928 * A055930 A055931 A055932

KEYWORD

nonn

AUTHOR

Labos Elemer, Jul 17 2000

STATUS

approved

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Last modified November 22 18:55 EST 2019. Contains 329410 sequences. (Running on oeis4.)