A135235 - OEIS

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A135235

Numbers n such that n=s^phi(s) where s is sum of its digits.

1, 2, 34012224 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,2`
	COMMENTS	`Next term has 417 digits. In fact the sequence has only four terms and a(4)=400^160.`
	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	`Cf. A135234, A135236, A135237.` `Sequence in context: A121390 A170997 A157992 * A170998 A053823 A034251` `Adjacent sequences: A135232 A135233 A135234 * A135236 A135237 A135238`
	KEYWORD	`base,fini,nonn,bref`
	AUTHOR	`Farideh Firoozbakht (mymontain(AT)yahoo.com), Nov 24 2007`

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Last modified February 16 09:00 EST 2012. Contains 205904 sequences.