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A118730 Numbers n such that 2^n has even digit sum. 2
1, 2, 3, 6, 9, 11, 13, 14, 15, 17, 21, 26, 32, 33, 36, 37, 41, 42, 43, 44, 45, 46, 47, 50, 51, 54, 55, 57, 58, 60, 61, 64, 65, 67, 70, 71, 73, 74, 76, 77, 78, 79, 80, 82, 83, 84, 85, 86, 90, 91, 95, 98, 102, 103, 106, 107, 112, 113, 115, 116, 117, 120, 122, 123, 124, 126 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..66.

MATHEMATICA

Select[Range[126], Mod[ Plus @@ IntegerDigits[2^# ], 2] == 0 &] (*Chandler*)

CROSSREFS

Cf. A118733, A118734.

Sequence in context: A215618 A189708 A127590 * A291669 A097384 A067886

Adjacent sequences:  A118727 A118728 A118729 * A118731 A118732 A118733

KEYWORD

base,nonn

AUTHOR

Zak Seidov, May 22 2006

STATUS

approved

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Last modified August 17 17:05 EDT 2018. Contains 313816 sequences. (Running on oeis4.)