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Search: id:A065999
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A065999 Sum of digits of 9^n. +0
1
1, 9, 9, 18, 18, 27, 18, 45, 27, 45, 45, 45, 54, 63, 72, 63, 63, 99, 81, 90, 90, 90, 90, 108, 117, 144, 117, 108, 90, 126, 99, 153, 144, 117, 153, 144, 162, 171, 153, 153, 153, 198, 162, 171, 198, 216, 171, 198, 198, 225, 153, 252, 216, 234, 207 (list; graph; listen)
OFFSET

0,2

REFERENCES

M. Sapir et al., Problem 10758, Amer. Math. Monthly, 108 (Dec., 2001), 977-978.

CROSSREFS

Cf. A001370 (2^n), A004166 (3^n), A065713 (4^n), A066001(5^n), A066002 (6^n), A066003(7^n), A066004 (8^n), this sequence (9^n), A066005 (11^n), A066006 (12^n).

Sequence in context: A003885 A040073 A003886 this_sequence A112440 A022092 A053456

Adjacent sequences: A065996 A065997 A065998 this_sequence A066000 A066001 A066002

KEYWORD

nonn,easy,base

AUTHOR

njas, Dec 11 2001

page 1

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.


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