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A004166 Sum of digits of 3^n. +0
3
1, 3, 9, 9, 9, 9, 18, 18, 18, 27, 27, 27, 18, 27, 45, 36, 27, 27, 45, 36, 45, 27, 45, 54, 54, 63, 63, 81, 72, 72, 63, 81, 63, 72, 99, 81, 81, 90, 90, 81, 90, 99, 90, 108, 90, 99, 108, 126, 117, 108, 144, 117, 117, 135, 108, 90, 90, 108, 126, 117, 99 (list; graph; listen)
OFFSET

0,2

LINKS

Albert Frank, International Contest Of Logical Sequences, 2002 - 2003. Item 3

Albert Frank, Solutions of International Contest Of Logical Sequences, 2002 - 2003.

CROSSREFS

Sequence in context: A084762 A111120 A100401 this_sequence A110759 A063750 A143225

Adjacent sequences: A004163 A004164 A004165 this_sequence A004167 A004168 A004169

KEYWORD

nonn,base

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.


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