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Search: id:A118731
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A118731 Numbers n such that 2^n has odd digit sum. +0
3
0, 4, 5, 7, 8, 10, 12, 16, 18, 19, 20, 22, 23, 24, 25, 27, 28, 29, 30, 31, 34, 35, 38, 39, 40, 48, 49, 52, 53, 56, 59, 62, 63, 66, 68, 69, 72, 75, 81, 87, 88, 89, 92, 93, 94, 96, 97, 99, 100, 101, 104, 105, 108, 109, 110, 111, 114, 118, 119, 121, 125, 127, 131, 132, 133 (list; graph; listen)
OFFSET

1,2

MATHEMATICA

Select[Range[0, 133], Mod[ Plus @@ IntegerDigits[2^# ], 2] == 1 &] (*Chandler*)

CROSSREFS

Cf. A118732, A118735, A076203.

Sequence in context: A032728 A078577 A037259 this_sequence A076203 A120163 A088763

Adjacent sequences: A118728 A118729 A118730 this_sequence A118732 A118733 A118734

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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