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3, 5, 9, 12, 15, 17, 20, 23, 27, 29, 33, 36, 39, 43, 45, 48, 51, 53, 57, 60, 63, 65, 68, 71, 75, 77, 80, 83, 85, 89, 92, 95, 99, 101, 105, 108, 111, 113, 116, 119, 123, 125, 129, 132, 135, 139, 141, 144, 147, 149, 153, 156, 159, 163, 165, 169, 172, 175, 177, 180, 183
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OFFSET
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1,1
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COMMENTS
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Also n such that A033485(n) = 3 mod 4; see A007413.
Also n such that A029883(n-1) = -1, A036577(n-1) = 0, A036585(n-1) = 1 . - Philippe Deléham, Mar 25 2004
The number of odd numbers before the n-th even number in this sequence is a(n). - Philippe Deléham, Mar 27 2004
Numbers n such that {A010060(n-1), A010060(n)}={1,0} where A010060 is the Thue-Morse sequence. - Benoit Cloitre, Jun 16 2006
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REFERENCES
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Aviezri S. Fraenkel, <a href="http://www.wisdom.weizmann.ac.il/~fraenkel/Papers/DISC8773.pdf">The vile, dopy, evil and odious game players</a>, Discrete Math. 312 (2012), pp. 42-46.
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LINKS
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Table of n, a(n) for n=1..61.
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FORMULA
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a(n) = A003159(2n) = A036554(2n)/2.
a(n) is asymptotic to 3*n - Benoit Cloitre, Mar 22 2004
A050292(a(n)) = 2n . - Philippe Deléham, Mar 26 2004
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PROG
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(PARI) is(n)=hammingweight(n-1)%2 && hammingweight(n)%2==0 \\ Charles R Greathouse IV, Mar 26 2013
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CROSSREFS
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Sequence in context: A160358 A120806 A020946 * A191403 A003075 A061562
Adjacent sequences: A091782 A091783 A091784 * A091786 A091787 A091788
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KEYWORD
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easy,nonn
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AUTHOR
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Philippe Deléham, Mar 16 2004
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EXTENSIONS
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More terms from Benoit Cloitre, Mar 22 2004
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STATUS
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approved
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