A074835 Numbers n such that sigma(phi(n)) = sum of anti-divisors of n.

4, 59, 6186, 12846, 18003, 19677, 52364, 293565, 984636, 1894557, 1965537, 9946704, 31849014, 138419397, 250780145, 1650149334

Offset

1,1

Comments

See A066272 for definition of anti-divisor.

Links

Table of n, a(n) for n=1..16.

Crossrefs

Cf. A062402, A066417.

Sequence in context: A298064 A298713 A058173 * A060492 A234952 A112041

Adjacent sequences: A074832 A074833 A074834 * A074836 A074837 A074838

Keyword

more,nonn

Author

Jason Earls, Sep 09 2002

Extensions

Offset corrected and a(12)-a(16) from Donovan Johnson, Jan 19 2012

Status

approved