A139412 - OEIS

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A139412

Numbers n such that phi(n)=10^phi(d_1)+10^phi(d_2)+...+10^phi(d_k) where d_1d_2...d_k is the decimal expansion of n.

231, 34386, 3775375 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	EXAMPLE	`phi(3775375)=10^phi(3)+10^phi(7)+10^phi(7)+10^phi(5)+10^phi(3)+` `10^phi(7)+10^phi(5).`
	CROSSREFS	`Cf. A139411, A139413.` `Sequence in context: A201957 A152500 A066370 * A027551 A172861 A068750` `Adjacent sequences: A139409 A139410 A139411 * A139413 A139414 A139415`
	KEYWORD	`base,nonn,bref`
	AUTHOR	`Farideh Firoozbakht (mymontain(AT)yahoo.com), May 11 2008`

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Last modified February 16 07:03 EST 2012. Contains 205867 sequences.