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A135237 Numbers n such that n=s^pi(pi(s)) where s is sum of its digits. 3
1, 3, 4, 81, 234256, 390625, 614656, 52521875, 60466176, 8303765625, 24794911296, 480682838924478847449 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
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
Sequence in context: A041171 A279935 A111799 * A316197 A041253 A297119
KEYWORD
base,fini,full,nonn
AUTHOR
Farideh Firoozbakht, Nov 24 2007
STATUS
approved

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Last modified June 19 02:05 EDT 2024. Contains 373492 sequences. (Running on oeis4.)