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Search: id:A118732
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A118732 Numbers n such that 3^n has odd digit sum. +0
3
0, 1, 2, 3, 4, 5, 9, 10, 11, 13, 14, 16, 17, 18, 20, 21, 22, 25, 26, 27, 30, 31, 32, 34, 35, 36, 39, 41, 45, 48, 51, 52, 53, 59, 60, 61, 62, 63, 65, 66, 68, 69, 73, 74, 76, 78, 79, 80, 81, 86, 87, 89, 91, 92, 98, 99, 100, 101, 103, 105, 108, 113, 114, 115, 117, 118, 119, 121 (list; graph; listen)
OFFSET

1,3

MATHEMATICA

Select[Range[0, 121], Mod[ Plus @@ IntegerDigits[3^# ], 2] == 1 &] (*Chandler*)

CROSSREFS

Cf. A118731, A118735.

Sequence in context: A047362 A032969 A095906 this_sequence A118872 A046029 A139456

Adjacent sequences: A118729 A118730 A118731 this_sequence A118733 A118734 A118735

KEYWORD

base,nonn

AUTHOR

Zak Seidov (zakseidov(AT)yahoo.com), May 22 2006

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Last modified November 18 20:14 EST 2008. Contains 147244 sequences.


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