id:A135237 - OEIS Search Results

Search: id:A135237

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

+0
4

1, 3, 4, 81, 234256, 390625, 614656, 52521875, 60466176, 8303765625, 24794911296, 480682838924478847449 (list; graph; listen)

	OFFSET	`1,2`
	EXAMPLE	`24794911296=(2+4+7+9+4+9+1+1+2+9+6)^pi(pi(2+4+7+9+4+9+1+1+2+9+6)) so 24794911296 is in the sequence.`
	CROSSREFS	`Cf. A135234, A135235, A135236.` `Sequence in context: A132414 A041171 A111799 this_sequence A041253 A156182 A126578` `Adjacent sequences: A135234 A135235 A135236 this_sequence A135238 A135239 A135240`
	KEYWORD	`base,fini,full,nonn`
	AUTHOR	`Farideh Firoozbakht (mymontain(AT)yahoo.com), Nov 24 2007`

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.