A098203 EulerPhi of multiperfect numbers.

1, 2, 12, 32, 240, 192, 4032, 6912, 6912, 153600, 435456, 5529600, 16773120, 11059200, 33177600, 143327232, 286654464, 433520640, 4294901760, 2627665920, 6019743744, 10705305600, 15925248000, 15606743040

Offset

1,2

Links

Table of n, a(n) for n=1..24.

Formula

a(n) = A000010(A007691(n)).

Crossrefs

Cf. A000010, A007691, A098204.

Sequence in context: A363661 A133577 A106185 * A305330 A320542 A242709

Adjacent sequences: A098200 A098201 A098202 * A098204 A098205 A098206

Keyword

nonn

Author

Labos Elemer, Sep 23 2004

Status

approved