A055929 EulerPhi of the factorial of prime(n).

1, 2, 32, 1152, 8294400, 1194393600, 64210599936000, 20804234379264000, 4229084764616785920000, 1396531754239566739931136000000, 1256878578815610065938022400000000

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