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A068114 Integers of the form phi(n!)/phi(n)!. 0
1, 4, 96, 384, 34560, 4147200, 23224320, 6220800, 99532800, 1605264998400, 10319560704000, 52973744947200, 2517312359890944000, 137731736862720000, 104125193068216320000, 1039086126666344300544000000 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
MATHEMATICA
Select[Table[EulerPhi[n!]/EulerPhi[n]!, {n, 50}], IntegerQ] //DeleteDuplicates (* Harvey P. Dale, Sep 09 2017 *)
CROSSREFS
Sequence in context: A210926 A302121 A188895 * A272109 A203316 A359653
KEYWORD
easy,nonn
AUTHOR
Benoit Cloitre, Mar 17 2002
STATUS
approved

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Last modified July 21 02:12 EDT 2024. Contains 374462 sequences. (Running on oeis4.)