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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 December 7 14:54 EST 2023. Contains 367657 sequences. (Running on oeis4.)