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A135235 Numbers n such that n=s^phi(s) where s is sum of its digits. 3
1, 2, 34012224 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Next term has 417 digits. In fact the sequence has only four terms and a(4)=400^160.
LINKS
EXAMPLE
34012224=(3+4+0+1+2+2+2+4)^phi(3+4+0+1+2+2+2+4) so 34012224 is in the sequence.
CROSSREFS
Sequence in context: A296627 A247214 A367833 * A334022 A263645 A367834
KEYWORD
base,fini,nonn,bref
AUTHOR
Farideh Firoozbakht, Nov 24 2007
STATUS
approved

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Last modified June 18 12:25 EDT 2024. Contains 373481 sequences. (Running on oeis4.)