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A067575 Numbers n such that n divides phi(n)*bigomega(n). 1
1, 4, 12, 16, 18, 27, 64, 80, 96, 144, 200, 216, 256, 324, 448, 486, 500, 672, 729, 768, 1008, 1024, 1152, 1250, 1512, 1568, 1728, 2268, 2352, 2560, 2592, 3125, 3402, 3528, 3888, 4096, 5103, 5292, 5488, 5832, 6144, 6400, 7938, 8232 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..44.

FORMULA

If n=4^k k>=0 n is in the sequence

CROSSREFS

Cf. A011775.

Sequence in context: A328840 A255411 A340929 * A193022 A145199 A082420

Adjacent sequences:  A067572 A067573 A067574 * A067576 A067577 A067578

KEYWORD

nonn

AUTHOR

Benoit Cloitre, Jan 30 2002

STATUS

approved

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Last modified April 20 03:02 EDT 2021. Contains 343121 sequences. (Running on oeis4.)