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Search: id:A091855
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| 1, 4, 7, 11, 13, 16, 19, 21, 25, 28, 31, 35, 37, 41, 44, 47, 49, 52, 55, 59, 61, 64, 67, 69, 73, 76, 79, 81, 84, 87, 91, 93, 97, 100, 103, 107, 109, 112, 115, 117, 121, 124, 127, 131, 133, 137, 140, 143, 145, 148, 151, 155, 157, 161, 164, 167, 171, 173, 176, 179, 181
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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Also n such that A033485(n) = 1 mod 4; see A007413.
Also n such that A029883(n-1) = 1, A036577(n-1) = 2, A036585(n-1) = 3 . - DELEHAM Philippe (kolotoko(AT)wanadoo.fr), Mar 25 2004
The number of odd numbers before the n-th even number in this sequence is a(n). - DELEHAM Philippe (kolotoko(AT)wanadoo.fr), Mar 27 2004
Numbers n such that {A010060(n-1), A010060(n)}={0,1} where A010060 is the Thue-Morse sequence. - Benoit Cloitre (abmt(AT)orange.fr), Jun 16 2006
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FORMULA
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a(n) = A003159(2n-1) = A036554(2n-1)/2.
a(n) is asymptotic to 3*n - Benoit Cloitre (benoit7848c(AT)orange.fr), Mar 22 2004
A050292(a(n)) = 2n - 1 . - DELEHAM Philippe (kolotoko(AT)wanadoo.fr), Mar 26 2004
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CROSSREFS
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Adjacent sequences: A091852 A091853 A091854 this_sequence A091856 A091857 A091858
Sequence in context: A075630 A023985 A023979 this_sequence A092403 A102737 A081834
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KEYWORD
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easy,nonn
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AUTHOR
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DELEHAM Philippe (kolotoko(AT)wanadoo.fr), Mar 16 2004
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EXTENSIONS
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More terms from Benoit Cloitre (benoit7848c(AT)orange.fr), Mar 22 2004
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