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A115917 Numbers k such that sigma(k) - phi(k) 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
EXAMPLE
sigma(62001) - phi(62001) = 49813 = 109*457.
CROSSREFS
Sequence in context: A083333 A032359 A346501 * A275004 A115741 A177168
KEYWORD
nonn,base
AUTHOR
Giovanni Resta, Feb 06 2006
STATUS
approved

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Last modified April 15 04:55 EDT 2024. Contains 371667 sequences. (Running on oeis4.)