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A115917 Numbers n such that sigma(n)-phi(n) is a brilliant number (A078972). 0
6, 10, 49, 242, 289, 512, 578, 800, 900, 1250, 2048, 5041, 15625, 17424, 22201, 22472, 26450, 28900, 48400, 60025, 62001, 65536, 69169, 91592, 131072, 144722, 146689, 151321, 160801, 201601, 212521, 236196, 242064, 252050, 253009 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..35.

EXAMPLE

sigma(62001)-phi(62001)=49813=109*457.

CROSSREFS

Cf. A078972, A115916.

Sequence in context: A068588 A083333 A032359 * A275004 A115741 A177168

Adjacent sequences:  A115914 A115915 A115916 * A115918 A115919 A115920

KEYWORD

nonn,base

AUTHOR

Giovanni Resta, Feb 06 2006

STATUS

approved

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Last modified August 12 08:33 EDT 2020. Contains 336438 sequences. (Running on oeis4.)